Your bag is empty
Don't miss out on great deals! Start shopping or Sign in to view products added.
Shop What's New Sign in
Preview Extract
Chapter 02 – Atoms, Molecules, and Ions
1. Which of the following is/are postulates of Dalton’s atomic theory?
1. Atoms combine in fixed ratios of whole numbers.
2. Atoms of each element have different properties.
3. Elements occur as solids, liquids, or gases.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.24 – List the postulates of atomic theory.
TOPICS:
early atomic theory
atomic theory of matter
2. Which of the following statements best describes the particulate representation depicted by the picture?
a. The figure is a representation of a gas made up of a single element.
b. The figure is a representation of a molecular solid.
c. The figure is a representation of a liquid mixture of two elements.
d. The figure is a representation of a liquid mixture of two compounds.
e. The figure is a representation of a gas of a compound.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.1
HAS VARIABLES:
True
LEARNING OBJECTIV GENE.EBBI.13.25 – Define element, compound, and chemical reaction in the context
ES:
of these postulates.
TOPICS:
early atomic theory
atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 1
Chapter 02 – Atoms, Molecules, and Ions
3. Which of the following is not a correct name–symbol combination?
a. gallium, Ga
b. iron, Fe
c. nitrogen, N
d. argon, Ar
e. sodium, He
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
4. The symbol for tin is
a. T.
b. Tn.
c. Si.
d. Ti.
e. Sn.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 2
Chapter 02 – Atoms, Molecules, and Ions
5. What is the symbol for the element phosphorus?
a. Po
b. P
c. Pt
d. K
e. Pr
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
6. Which one of the following lists gives the correct symbols for the elements phosphorus, potassium, silver,
chlorine, and sulfur?
a. P, Po, Ag, Cl, S
b. K, Ag, Po, Cl, S
c. P, K, Ag, Cl, S
d. Ph, K, Ag, S, Cl
e. Ph, Po, Ag, Cl, S
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 3
Chapter 02 – Atoms, Molecules, and Ions
7. Which of the following lists gives the atomic symbols for potassium, magnesium, beryllium, and sodium?
a. Po, Mn, Br, Na
b. P, Mn, Be, Se
c. K, Mg, Be, Na
d. Pt, Mg, Be, Sc
e. K, Mn, Br, Na
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
8. The names of the elements whose symbols are Si, P, Mn, and S are, respectively,
a. silicon, phosphorus, manganese, and sulfur.
b. silicon, potassium, magnesium, and sulfur.
c. silver, phosphorus, magnesium, and sodium.
d. silver, potassium, manganese, and sodium.
e. silicon, potassium, manganese, and sulfur.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 4
Chapter 02 – Atoms, Molecules, and Ions
9. Which of the following is the atomic symbol for the element cobalt?
a. CO
b. Co
c. C
d. co
e. All of the above
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.26 – Recognize the atomic symbols of the elements.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
10. A series of silicon–hydrogen compounds with the general formula SinH2n+2 can be represented by the
known compounds SiH4, Si2H6, and Si3H8. This best illustrates the law of
a. multiple proportions.
b. conservation of charge.
c. definite composition.
d. conservation of mass.
e. conservation of atoms.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
Dalton’s atomic theory
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 5
Chapter 02 – Atoms, Molecules, and Ions
11. According to the law of multiple proportions:
a. the total mass is the same after a chemical change as before the change.
b. it is not possible for the same two elements to form more than one compound.
c. the ratio of the masses of the elements in a compound is always the same.
d. if the same two elements form two different compounds, they do so in the same ratio.
e. none of these
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions.
TOPICS:
general concepts
matter
KEYWORDS:
compound
OTHER:
general chemistry
12. Which of the following pairs of compounds can be used to illustrate the law of multiple proportions?
a. H2O and HCl
b. NO and NO2
c. NH4 and NH4Cl
d. ZnO2 and ZnCl2
e. CH4 and CO2
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.1
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions.
TOPICS:
general concepts
matter
KEYWORDS:
compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 6
Chapter 02 – Atoms, Molecules, and Ions
13. Cathode rays are
a. anions.
b. protons.
c. cations.
d. positrons.
e. electrons.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the
:
electron.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
discovery of electron | structure of the atom
OTHER:
general chemistry
14. A subatomic particle is
a. a piece of an atom.
b. only found in the nucleus of an atom.
c. always positively charged.
d. larger than the nucleus of an atom.
e. always negatively charged.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.1
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.29 – Describe Rutherford’s nuclear model and the makeup of the
:
nucleus.
TOPICS:
early atomic theory
atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 7
Chapter 02 – Atoms, Molecules, and Ions
15. Experiments were carried out in which a beam of cathode rays was first bent by a magnetic field and then
bent back by an electrostatic field until the beam hit the screen exactly where it had been hitting before the
fields were applied. This experiment permitted the direct measurement of
a. the ratio of mass to charge of an electron.
b. the charge on the nucleus of an atom.
c. the charge on the electron.
d. the mass of the atom.
e. the mass of the electron.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the
:
electron.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
discovery of electron | structure of the atom
OTHER:
general chemistry
16. Who discovered the electron?
a. Bohr
b. de Broglie
c. Rutherford
d. Heisenberg
e. Thomson
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the
:
electron.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
discovery of electron | structure of the atom
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 8
Chapter 02 – Atoms, Molecules, and Ions
17. Which of the following conclusions regarding Rutherford’s gold foil experiment is not consistent with the
observations?
a. The nucleus occupies only a small portion of the space of an atom.
b. Most alpha particles travel straight through the gold foil.
c. The nucleus occupies a large amount of the atom space.
d. The nucleus, like the alpha particles used to bombard the gold foil, is positively charged.
e. Wide angle deflections result from a collision of an alpha particle and a gold atom nucleus.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVE GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model
S:
of the atom.
TOPICS:
atomic theory of matter
early atomic theory
18. Who discovered the nucleus of an atom?
a. Thomson
b. de Broglie
c. Rutherford
d. Bohr
e. Heisenberg
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVE GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model
S:
of the atom.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear model of atom | structure of the atom
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 9
Chapter 02 – Atoms, Molecules, and Ions
19. If the Thomson model of the atom had been correct, Rutherford would have observed
a. alpha particles bouncing off the foil.
b. alpha particles going through the foil with little or no deflection.
c. alpha particles greatly deflected by the metal foil.
d. positive particles formed in the foil.
e. None of the above observations is consistent with the Thomson model of the atom.
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVE GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model
S:
of the atom.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear model of atom | structure of the atom
OTHER:
general chemistry
191
20. The nucleus of a Ir nuclide contains
a. 191 neutrons and 268 electrons.
b. 77 protons and 191 neutrons.
c. 191 protons and 114 electrons.
d. 191 protons, 77 neutrons, and 191 electrons.
e. 77 protons and 114 neutrons.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 10
Chapter 02 – Atoms, Molecules, and Ions
21. If two different nuclides have the same atomic number, it must mean that
a. they have the same atomic mass.
b. they have the same mass number.
c. they have the same number of protons.
d. they have the same number of electrons.
e. they have the same number of neutrons.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear structure
OTHER:
general chemistry
22. If two different nuclides have the same mass number, it must mean that
a. the combined number of protons and neutrons are the same.
b. both have the same number of neutrons.
c. both have the same number of electrons.
d. both have the same number of protons.
e. they are isotopes.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear structure
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 11
Chapter 02 – Atoms, Molecules, and Ions
23. The number of protons in a given nucleus determines the
a. mass number.
b. atomic number.
c. number of electrons.
d. number of protons.
e. number of isotopes.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear structure
OTHER:
general chemistry
24. Which nuclide has the same number of protons as
a.
?
b.
c.
d.
e.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear structure
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 12
Chapter 02 – Atoms, Molecules, and Ions
25. How many electrons does the ion
have?
a. 18
b. 36
c. 16
d. 34
e. 19
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
26. How many protons are there in the chromium-52 nuclide?
a. 29
b. 76
c. 23
d. 24
e. 28
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 13
Chapter 02 – Atoms, Molecules, and Ions
27. How many neutrons are there in the cobalt-59 nuclide?
a. 27
b. 2
c. 86
d. 59
e. 32
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
28. An atom that has the same number of neutrons as
a. 58Zn.
b. 60Cu.
c.
d.
is
.
.
e. 59
Co.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 14
Chapter 02 – Atoms, Molecules, and Ions
57
29. Which combination of protons, neutrons, and electrons correctly represents a Fe nuclide?
a. 26 protons, 31 neutrons, 57 electrons
b. 26 protons, 31 neutrons, 31 electrons
c. 26 protons, 31 neutrons, 26 electrons
d. 57 protons, 26 neutrons, 57 electrons
e. 57 protons, 26 neutrons, 26 electrons
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
30. The species that has the same number of neutrons as
a.
.
b.
.
c.
d.
e.
is
.
.
.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 15
Chapter 02 – Atoms, Molecules, and Ions
31. Which of the following nuclides contains more protons than neutrons?
a.
b.
c.
d.
e.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory
atomic theory of matter
32. How many neutrons are there in 8 molecules of
?
a. 160
b. 80
c. 3
d. 304
e. 144
ANSWER:
a
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide.
TOPICS:
early atomic theory | atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 16
Chapter 02 – Atoms, Molecules, and Ions
33. Suppose atom 1 has the same number of protons as atom 2, and atom 2 has the same number of neutrons as
atom 3. Atom 1 does not have the same number of neutrons as atom 3. Which of the following statements is
true?
a. Atom 3 must have the same number of protons as atom 2.
b. Atoms 1 and 2 must be isotopes.
c. Atoms 1 and 3 must be isotopes.
d. Atom 2 must have the same number of neutrons as atom 1.
e. Atom 3 must have the same number of protons as atom 1.
ANSWER:
b
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
nuclear structure
OTHER:
general chemistry
16
17
34. Which of the following statements is true concerning the two nuclides O and O ?
a. They have the same number of neutrons.
b. They are isotopes.
c. They have the same relative atomic mass.
d. They have the same mass number.
e. They have different chemical properties.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
isotope
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 17
Chapter 02 – Atoms, Molecules, and Ions
35. Which of the following atomic symbols represents an isotope of
a. 93Nb
94
Mo?
b. 95Tc
c. 94Tc
d. 95Mo
e. 94Nb
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
isotope
OTHER:
general chemistry
36. Which of the following represents a pair of isotopes?
Atomic Number
Mass Number
a. I
17
34
II
18
34
b. I
7
14
II
8
14
c. I
17
35
II
17
37
d. I
17
37
II
18
38
e. I
7
15
II
8
16
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
isotope
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 18
Chapter 02 – Atoms, Molecules, and Ions
37. There are three isotopes of carbon differing with respect to
a. electron configuration.
b. nuclear charge.
c. number of neutrons.
d. number of protons.
e. atomic number.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
isotope
OTHER:
general chemistry
38. Which of the following about the isotopes of a particular element is not true?
a. Each unique isotope has a different atomic mass.
b. Each unique isotope has a different atomic number.
c. Each unique isotope has a different number of neutrons.
d. Each unique isotope has the same number of protons.
e. In neutral atoms of each unique isotope, the number of electrons equals the number of protons.
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 19
Chapter 02 – Atoms, Molecules, and Ions
39. The neutral atoms of all the isotopes of the same element have
a. different numbers of protons.
b. the same number of neutrons.
c. the same number of electrons.
d. the same mass.
e. the same mass number.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.33 – Define and provide examples of isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
isotope
OTHER:
general chemistry
40. What is the symbol of the nuclide having 13 protons and 14 neutrons?
a.
b.
c.
d.
e.
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.3
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.34 – Write the nuclide symbol of an element. (Example 2.1)
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic symbol
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 20
Chapter 02 – Atoms, Molecules, and Ions
41. Which of the following has 62 neutrons, 46 protons, and 46 electrons?
a.
b.
c.
d.
e.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.3
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.34 – Write the nuclide symbol of an element. (Example 2.1)
TOPICS:
general concepts
atomic theory of matter
42. Which of the following elements has the largest atomic mass?
a. hafnium
b. nickel
c. mercury
d. argon
e. carbon
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.4
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.35 – Define atomic mass unit and atomic weight.
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic mass unit | atomic weight
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 21
Chapter 02 – Atoms, Molecules, and Ions
43. The mass spectrum of an element with two naturally occurring isotopes is shown below. What is the best
estimate of the element’s atomic mass?
a. 10 amu
b. 11 amu
c. 10.8 amu
d. 10.2 amu
e. 10.5 amu
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES: 2.4
HAS VARIABLES: False
LEARNING OBJE GENE.EBBI.13.36 – Describe how a mass spectrometer can be used to determine the
CTIVES:
fractional abundance of the isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 22
Chapter 02 – Atoms, Molecules, and Ions
44. The mass spectrum of an element with two naturally occurring isotopes is shown below. Its average atomic
mass would be best estimated as
a. less than 26 amu but greater than 25 amu.
b. less than 25 amu but greater than 24 amu.
c. equal to 24 amu.
d. equal to 25 amu.
e. greater than 26 amu.
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES: 2.4
HAS VARIABLES: False
LEARNING OBJE GENE.EBBI.13.36 – Describe how a mass spectrometer can be used to determine the
CTIVES:
fractional abundance of the isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
Copyright Cengage Learning. Powered by Cognero.
Page 23
Chapter 02 – Atoms, Molecules, and Ions
6
7
45. Lithium has two naturally occurring isotopes, Li and Li . The average atomic mass of lithium is
6.941. Which of the following statements concerning the relative abundance of each isotope is correct?
a. The abundance of 7Li is greater than 6Li.
b. The abundance of 7Li is less than 6Li.
c. The abundance of 6Li is equal to the abundance of 7Li.
d. Not enough data is provided to determine the correct answer.
e. Based on the atomic mass, only 7Li occurs naturally.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES: 2.4
HAS VARIABLES: False
LEARNING OBJE GENE.EBBI.13.36 – Describe how a mass spectrometer can be used to determine the
CTIVES:
fractional abundance of the isotopes of an element.
TOPICS:
early atomic theory
atomic theory of matter
46. A certain element is listed as having an atomic mass of 63.5 amu. It is probably true that this element
contains
a. a mixture of isotopes.
b. a mixture of neutrons.
c. a mixture of isomers.
d. a mixture of allotropes.
e. a mixture of ions.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.4
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.37 – Determine the atomic mass of an element from the isotopic masses
TIVES:
and fractional abundances. (Example 2.2)
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic weight
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 24
Chapter 02 – Atoms, Molecules, and Ions
47. The average atomic mass of Eu is 151.96 amu. There are only two naturally occurring isotopes of europium,
151
153
131
Eu with a mass of 151.0 amu and Eu with a mass of 153.0 amu. The natural abundance of the Eu
isotope must be approximately
a. 60%.
b. 20%.
c. 50%.
d. 80%.
e. 40%.
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.4
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.37 – Determine the atomic mass of an element from the isotopic masses
TIVES:
and fractional abundances. (Example 2.2)
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic weight
OTHER:
general chemistry
48. Naturally occurring element X exists in three isotopic forms: X-28 (27.979 amu, 92.21% abundance), X-29
(28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 3.09% abundance). Calculate the atomic weight of X.
a. 29.09 amu
b. 28.09 amu
c. 35.29 amu
d. 86.93 amu
e. 25.80 amu
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.4
HAS VARIABLES: True
LEARNING OBJEC GENE.EBBI.13.37 – Determine the atomic mass of an element from the isotopic masses
TIVES:
and fractional abundances. (Example 2.2)
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic weight
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 25
Chapter 02 – Atoms, Molecules, and Ions
20
22
49. Neon has three naturally occuring isotopes. The abundance of Ne is 90.48% and Ne is 9.25%. What is
21
the percent abundance of Ne?
a. 9.25%
b. 0.27%
c. 49.9%
d. 33.2%
e. 81.2%
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.4
HAS VARIABLES:
False
LEARNING OBJECTIGENE.EBBI.13.38 – Determine the atomic mass of an element from the isotopic masses
VES:
and fractional abundances.
TOPICS:
early atomic theory
atomic theory of matter
50. An element, X, has the following isotopic composition: X-200, 90%; X-199, 8.0%; and X-202, 2.0%. Its
average atomic mass is closest to
a. 200 amu.
b. 203 amu.
c. 199 amu.
d. 202 amu.
e. 201 amu.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.4
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.37 – Determine the atomic mass of an element from the isotopic masses
TIVES:
and fractional abundances. (Example 2.2)
TOPICS:
early atomic theory
atomic theory of matter
KEYWORDS:
atomic weight
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 26
Chapter 02 – Atoms, Molecules, and Ions
51. Which of the following concerning atomic mass is/are correct?
The atomic mass listed on a modern periodic table for each element is the mass
of the most abundant isotope.
The atomic mass listed on a modern periodic table is a relative atomic mass,
2.
12
based on the definition that C equals 12 amu.
3. Relative atomic masses can only be determined with a mass spectrometer.
a. 1 only
b. 2 only
c. 1 and 2
d. 2 and 3
e. 1, 2, and 3
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.4
HAS VARIABLES:
False
LEARNING OBJECTIGENE.EBBI.13.38 – Determine the atomic mass of an element from the isotopic masses
VES:
and fractional abundances.
TOPICS:
early atomic theory
atomic theory of matter
1.
52. A periodic law based on atomic masses would necessitate Te and I changing places in the periodic table.
This was not done in the early periodic table because
a. a periodic law based on atomic masses is not valid.
b. it was thought that the atomic masses might be in error.
c. iodine behaves chemically like chlorine and bromine.
d. the tellurium samples could contain a heavy impurity.
e. iodine contains one naturally occurring isotope, whereas tellurium consists of several isotopes.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.39 – Identify periods and groups on the periodic table.
TOPICS:
early atomic theory
periodic table
KEYWORDS:
group
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 27
Chapter 02 – Atoms, Molecules, and Ions
53. The elements in a row of the periodic table are known as
a. metals.
b. a period.
c. metalloids.
d. a family.
e. a group.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.39 – Identify periods and groups on the periodic table.
TOPICS:
early atomic theory
periodic table
KEYWORDS:
period
OTHER:
general chemistry
54. Which of the following statements about different elements is incorrect?
a. Potassium is an alkali metal.
b. Fluorine is a halogen.
c. Aluminum is a transition element.
d. Barium is an alkaline earth metal.
e. Helium is a noble gas.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.40 – Find the main-group and transition elements on the periodic
table.
TOPICS:
early atomic theory
periodic table
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 28
Chapter 02 – Atoms, Molecules, and Ions
55. Which of the following statements is not true about the element iron?
a. It is a metal.
b. It is a transition element.
c. It is in period 4.
d. It has chemical and physical properties most similar to zirconium.
e. It is in group VIIIB (group 8).
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.40 – Find the main-group and transition elements on the periodic
table.
TOPICS:
early atomic theory
periodic table
56. The elements in groups 1A-8A or 1-2 and 15-18 are known as the
a. main group.
b. metalloids or semimetals.
c. halogens.
d. transition metals.
e. inner transition metals.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.41 – Locate the alkali metal and halogen groups on the periodic
table.
TOPICS:
early atomic theory
periodic table
Copyright Cengage Learning. Powered by Cognero.
Page 29
Chapter 02 – Atoms, Molecules, and Ions
57. Choose the group containing the most reactive nonmetals.
a. Group 5A
b. Group 3A
c. Group 7A
d. Group 8A
e. Group 1A
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.41 – Locate the alkali metal and halogen groups on the periodic
table.
TOPICS:
early atomic theory
periodic table
KEYWORDS:
nonmetal
OTHER:
general chemistry
58. Which element belongs to the alkali metals?
a. rubidium
b. germanium
c. barium
d. iodine
e. argon
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.41 – Locate the alkali metal and halogen groups on the periodic
table.
TOPICS:
early atomic theory
periodic table
Copyright Cengage Learning. Powered by Cognero.
Page 30
Chapter 02 – Atoms, Molecules, and Ions
59. Which of the following statements about different elements is/are true?
1. As is a metalloid and Se is a nonmetal.
2. Cu is a transition element and Ge is a metalloid.
3. Both F and I are halogens.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.42 – Recognize the portions of the periodic table that contain the metals,
TIVES:
nonmetals, and metalloids (semimetals).
TOPICS:
early atomic theory
periodic table
OTHER:
general chemistry
60. Which of the following is a metalloid?
a. oxygen
b. hydrogen
c. silicon
d. carbon
e. copper
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.42 – Recognize the portions of the periodic table that contain the metals,
TIVES:
nonmetals, and metalloids (semimetals).
TOPICS:
early atomic theory
periodic table
KEYWORDS:
metalloid
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 31
Chapter 02 – Atoms, Molecules, and Ions
61. All of the following elements are best classified as metalloids except
a. Si.
b. Te.
c. As.
d. B.
e. Ga.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.5
HAS VARIABLES: False
LEARNING OBJEC GENE.EBBI.13.42 – Recognize the portions of the periodic table that contain the metals,
TIVES:
nonmetals, and metalloids (semimetals).
TOPICS:
early atomic theory
periodic table
KEYWORDS:
metalloid
OTHER:
general chemistry
62. Which formula is best described as a (condensed) structural formula?
a. C2B10H12
b. C6H11Cl
c. CH3CH2CH2CH2Cl
d. C12H22O11
e. C2H6O
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 32
Chapter 02 – Atoms, Molecules, and Ions
63. Which of the following is/are information that is unique to a space-filling molecular model?
1. The model shows the relative sizes of each element.
2. The model shows the charge distribution.
3. The model shows the types of bonds (single or multiple) connecting the atoms.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
20
64. In a particular mass of KAu(CN)2, there are 6.66 × 10
this sample?
a. 1.33 × 1021
b. 2.00 × 1021
atoms of gold. What is the total number of atoms in
c. 4.00 × 1021
d. 3.33 × 1021
e. 2.66 × 1021
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 33
Chapter 02 – Atoms, Molecules, and Ions
21
65. A sample of TNT, C7H5N3O6 , has 8.94 × 10
sample of TNT?
a. 1.79 × 1022
b. 11.92 × 1021
nitrogen atoms. How many hydrogen atoms are there in this
c. 1.49 × 1022
d. 8.94 × 1021
e. 2.09 × 1022
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula
OTHER:
general chemistry
66. A 2.0-g sample of washing soda, Na2CO3 • 10H2O, has
carbon atoms. How many oxygen atoms
are present in 2.0g of washing soda?
a.
b.
c.
d.
e.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 34
Chapter 02 – Atoms, Molecules, and Ions
21
67. A sample of the mineral troegerite, (UO2)3(AsO4)2 • 12H2O, has 1.34 × 10
atoms are present in this sample of troegerite?
a. 2.01 × 1022
b. 1.61 × 1022
U atoms. How many arsenic
c. 2.68 × 1021
d. 6.70 × 1022
e. 8.93 × 1020
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.43 – Determine whether a chemical formula is also a molecular
:
formula.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula
OTHER:
general chemistry
68. An ion is formed
a. by either adding electrons to or subtracting electrons from the atom.
b. by either adding protons to or subtracting protons from the atom.
c. by either adding neutrons to or subtracting neutrons from the atom.
d. All of the above are true.
e. Two of the above are true.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.44 – Define ion, cation, and anion.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 35
Chapter 02 – Atoms, Molecules, and Ions
+
2+
3+
69. The species Ag , Pt , and Tl are all
a. anions.
b. isotopes.
c. isoelectronic.
d. allotropes.
e. cations.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.44 – Define ion, cation, and anion.
TOPICS:
early atomic theory
chemical substance
70. The species that is formed when a molecule gains or loses an electron is called
a. an ion.
b. a metalloid.
c. an isotope.
d. an atom.
e. a metal.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.44 – Define ion, cation, and anion.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 36
Chapter 02 – Atoms, Molecules, and Ions
71. Which of the following statements is true about one formula unit of RuF2?
a. It is composed of one Ru atom and one F2 molecule.
b. It is composed of one Ru atom and two F atoms.
c. It is composed of one Ru2+ ion and one F22– ion.
d. It is composed of one RuF2 molecule.
e. It is composed of one Ru2+ ion and two F– ions.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.45 – Classify compounds as ionic or molecular.
TOPICS:
early atomic theory
chemical substance
72. Bismuth(III) sulfate is an ionic compound formed from Bi
represent the formula?
a. BiSO4+
3+
2-
and SO4 . What is the correct way to
b. Bi(SO4)2c. Bi3+SO42d. Bi2(SO4)3
e. Bi9(SO4)13.5
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.46 – Write an ionic formula, given the ions..
TOPICS:
chemical formulas
Copyright Cengage Learning. Powered by Cognero.
Page 37
Chapter 02 – Atoms, Molecules, and Ions
73. Chemical reactions between nonmetals and nonmetals primarily involve
a. sharing of electrons.
b. interactions between protons.
c. transfer of electrons.
d. interactions among protons, electrons, and neutrons.
e. interactions between protons and electrons.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.45 – Classify compounds as ionic or molecular.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | molecular substance
OTHER:
general chemistry
74. Which of the following is an ionic compound?
a. HOClO
b. NH3
c. CH3OH
d. N2O3
e. NH4CN
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.45 – Classify compounds as ionic or molecular.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 38
Chapter 02 – Atoms, Molecules, and Ions
75. The formula of water, H2O, suggests
a. there is twice as much mass of hydrogen as oxygen in each molecule.
b. there are two oxygen atoms and one hydrogen atom per water molecule.
c. there is twice as much mass of oxygen as of hydrogen in each molecule.
d. there are two hydrogen atoms and one oxygen atom per water molecule.
e. none of these
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.47 – Define and provide examples for the term formula unit.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula
OTHER:
general chemistry
76. How many oxygen atoms are there in a formula unit of UO2(C2H3O2)2 • NH4C2H3O2 • 5H2O?
a. 4
b. 13
c. 23
d. 9
e. 11
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.47 – Define and provide examples for the term formula unit.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 39
Chapter 02 – Atoms, Molecules, and Ions
77. What is the ratio of oxygen atoms to hydrogen atoms in the compound Fe4(PO4)3(OH)3 • 12H2O?
a. 15:3
b. 27:15
c. 27:27
d. 18:27
e. 25:17
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.47 – Define and provide examples for the term formula unit.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
78. What is the ratio of oxygen atoms to hydrogen atoms in the mineral carnotite, K2(UO2)3(VO4)2 • 3H2O?
a. 8:6
b. 8:3
c. 17:3
d. 9:6
e. 17:6
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.47 – Define and provide examples for the term formula unit.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 40
Chapter 02 – Atoms, Molecules, and Ions
79. Which statement is incorrect concerning the formation of ionic compounds?
a. Halogens tend to form anions with a charge of –1.
b. Alkali metals tend to form cations with a charge of +1.
c. Metals tend to form cations, while nonmetals tend to form anions.
d. Transition metals tend to form cations with a charge of +3.
e. Noble gases tend not to form ionic compounds.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.6
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.48 – Specify the charge on all substances, ionic and molecular.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic compound
OTHER:
general chemistry
2+
80. The empirical formula of a salt consisting of Ba
a. Ba2+OH–.
–
and OH ions is
b. BaOH.
c. Ba2OH.
d. Ba2(OH)3.
e. Ba(OH)2.
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.6
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.49 – Write an ionic formula, given the ions.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 41
Chapter 02 – Atoms, Molecules, and Ions
81. Which of the following molecules is a hydrocarbon?
a. H2O
b. CH3CH2CH3
c. C6H12O6
d. CH3CH2OH
e. CH3OCH3
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.7
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.50 – Explain what makes a molecule a hydrocarbon.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
organic compound
OTHER:
general chemistry
82. Which of the following molecules contains the ether functional group?
a. CH3CH2NH2
b. CH3CH2OCH2CH3
c. CH3CH2OH
d. CH3CH2COOH
e. H2O
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.7
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.51 – Recognize some functional groups of organic molecules.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
organic compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 42
Chapter 02 – Atoms, Molecules, and Ions
83. Which of the following molecules contains the carboxylic acid functional group?
a. CH3CH2CH2OH
b. CH3CH2COCH2CH3
c. CH3NHCH3
d. CH3OCH2CH3
e. CH3CH2CH2COOH
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.7
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.51 – Recognize some functional groups of organic molecules.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
organic compound
OTHER:
general chemistry
84. Which of the following molecules contains the alcohol functional group?
a. C6H6
b. CH3OH
c. CH4
d. CH3OCH3
e. C2H2
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.7
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.51 – Recognize some functional groups of organic molecules.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
organic compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 43
Chapter 02 – Atoms, Molecules, and Ions
85. How many electrons does a barium ion have?
a. 56
b. 8
c. 54
d. 44
e. 2
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
86. Which of the following statements is false?
a. A crystal of calcium fluoride has equal numbers of calcium ions and fluoride ions.
b. A sodium atom is most likely to ionize to form a cation of charge +1.
c. A sulfide ion has a total of 18 e–.
d. A potassium ion has a total of 18 e–.
e. The charge on a neutral chlorine atom is zero.
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 44
Chapter 02 – Atoms, Molecules, and Ions
87. As an ion, sodium has ______ electrons?
a. 24
b. 14
c. 11
d. 29
e. 10
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
88. How many electrons does a sulfide ion have?
a. 13
b. 22
c. 16
d. 18
e. 2
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 45
Chapter 02 – Atoms, Molecules, and Ions
89. Which metals form cations with varying positive charges?
a. many transition metals
b. Zn and Al
c. Group 1 metals
d. Group 1 and Group 2 metals
e. Group 2 metals
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
90. Which of the following represents a known ion?
a. S2+
b. Sc4+
c. Sn2+
d. P4–
e. Na–
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIV GENE.EBBI.13.52 – Learn the rules for predicting the charges of monatomic ions in
ES:
ionic compounds.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
chemical formula | ionic substance
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 46
Chapter 02 – Atoms, Molecules, and Ions
91. The formula for the sulfide ion is
a. SO32–.
b. SO42–.
c. S2O32–.
d. S2–.
e. HSO4–.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.53 – Apply the rules for naming monatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
2+
92. The correct name for Zn is
a. monozinc ion.
b. zinc ion.
c. zinc(2) ion.
d. zinc(I) ion.
e. zinc.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.53 – Apply the rules for naming monatomic ions.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 47
Chapter 02 – Atoms, Molecules, and Ions
93. The formula of the chlorite ion is
a. Cl2O3–.
b. ClO4–.
c. Cl–.
d. ClO2–.
e. ClO3–.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
2–
94. The name of the SO4 ion is
a. persulfate.
b. thiosulfite.
c. sulfite.
d. sulfate.
e. sulfide.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 48
Chapter 02 – Atoms, Molecules, and Ions
95. The formulas of the nitrite, phosphate, and nitrate ions are represented, respectively, as
a. N3–, PO33–, NO3–.
b. NO–, P5–, NO3–.
c. NO2–, P3–, NO3–.
d. NO3–, PO2–, N3–.
e. NO2–, PO43–, NO3–.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature
OTHER:
general chemistry
96. The formulas of the hydroxide ion, the nitrate ion, and the phosphate ion are represented, respectively, as
a. OH–, NO2–, PO33–.
b. OH–, NO2–, PO43–.
c. H–, NO2–, P3–.
d. H–, NO3–, P3–.
e. OH–, NO3–, PO43–.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 49
Chapter 02 – Atoms, Molecules, and Ions
97. All the following ions have the same charge except
a. sulfate.
b. dichromate.
c. chlorate.
d. sulfide.
e. sulfite.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
98. All the following ions have the same charge except
a. oxide.
b. monohydrogen phosphate.
c. peroxide.
d. permanganate.
e. oxalate.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 50
Chapter 02 – Atoms, Molecules, and Ions
99. The formulas of the carbonate ion, the ammonium ion, and the chlorate ion are represented, respectively, as
a. CO32–, NH2–, ClO3–.
b. CO32–, NH4+, ClO3–.
c. CO2–, NH4+, ClO–.
d. P3–, NH3+, ClO2–.
e. CO32–, NH3+, ClO2–.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.54 – Learn the names and charges of common polyatomic ions.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
100. The systematic name for BaH2 is
a. barium(II) hydrate.
b. barium hydride.
c. barium dihydrate.
d. barium dihydrogen.
e. barium dihydride.
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.55 – Name an ionic compound from its formula. (Example 2.4)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 51
Chapter 02 – Atoms, Molecules, and Ions
101. What is the name of the compound whose formula is Al2(SO4)3?
a. aluminum sulfate
b. dialuminum tri(sulfur tetraoxygen)
c. aluminum sulfide
d. aluminum persulfate
e. aluminum sulfite
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.55 – Name an ionic compound from its formula. (Example 2.4)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
102. The correct name for FeO is
a. iron(I) oxide.
b. iron oxide.
c. iron monoxide.
d. iron(II) oxide.
e. iron(III) oxide.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.55 – Name an ionic compound from its formula. (Example 2.4)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 52
Chapter 02 – Atoms, Molecules, and Ions
103. What is the formula for the chloride of gadolinium(III)?
a. Gd2(ClO2)3
b. Gd(ClO4)2
c. Gd3Cl
d. GdCl3
e. Gd(ClO3)3
ANSWER:
d
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
104. What is the correct formula for manganese(III) oxide?
a. MnO
b. Mn2O
c. Mn3O2
d. Mn2O3
e. MnO2
ANSWER:
d
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.57 – Write the formula of an ionic compound from its name.
TOPICS:
chemical formulas
Copyright Cengage Learning. Powered by Cognero.
Page 53
Chapter 02 – Atoms, Molecules, and Ions
105. What is the correct name for Ga2S3?
a. indium(III) sulfide
b. indium sulfide
c. diindium trisulfide
d. indium trisulfide
e. diindium(II) sulfide
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.57 – Write the formula of an ionic compound from its name.
TOPICS:
chemical formulas
106. What is the formula for calcium nitride?
a. CaNO2
b. Ca(NO3)2
c. Ca(NO2)2
d. Ca3N2
e. Ca2N3
ANSWER:
d
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 54
Chapter 02 – Atoms, Molecules, and Ions
107. The formula of calcium sulfide is
a. CaS.
b. CaSO2.
c. CaSO3.
d. CaSO4.
e. Ca(SO4)2.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
108. What is the formula of calcium nitrite?
a. Ca(NO2)2
b. Ca3N2
c. Ca2(NO2)2
d. Ca2N3
e. Ca(NO2)3
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 55
Chapter 02 – Atoms, Molecules, and Ions
109. The formula for aluminum bromide is
a. AlB.
b. AlBr.
c. Al2Br3.
d. AlBr2.
e. AlBr3.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
110. The chemical formula for iron(III) sulfide is
a. Fe2(SO4)3.
b. Fe2S3.
c. Fe2(SO3)3.
d. Fe3(SO3)2.
e. Fe3(SO4)2.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 56
Chapter 02 – Atoms, Molecules, and Ions
111. The formula for aluminum sulfate is
a. Al3(SO4)2.
b. Al3S2.
c. Al2(SO4)3.
d. Al2S3.
e. Al2(SO3)3.
ANSWER:
c
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
112. The formula for copper(II) phosphate is
a. Co2(PO4)3.
b. CuPO4.
c. Co3(PO4)2.
d. Cu2(PO4)3.
e. Cu3(PO4)2.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 57
Chapter 02 – Atoms, Molecules, and Ions
113. Choose the name–formula pair that does not match.
a. calcium fluoride, CaF2
b. iron(III) oxide, Fe2O3
c. aluminum oxide, Al2O3
d. potassium permanganate, K2MnO4
e. sodium sulfite, Na2SO3
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
114. Choose the name–formula pair that does not match.
a. calcium hydride, CaH2
b. ammonium hydrogen carbonate, NH4CO3
c. sodium chlorite, NaClO2
d. calcium hydroxide, Ca(OH)2
e. nitric acid, HNO3
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 58
Chapter 02 – Atoms, Molecules, and Ions
115. The formula for aluminum chloride is
a. AlCl3.
b. AlCl.
c. Al2Cl.
d. AlCl4.
e. AlCl2.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
116. The formula for potassium carbonate is
a. P2C.
b. K2CO3.
c. Po2CO3.
d. P2CO3.
e. K2C.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 59
Chapter 02 – Atoms, Molecules, and Ions
117. The formula for magnesium nitride is
a. Mg2N3.
b. Mg3N2.
c. MgNO2.
d. Mg(NO2)2.
e. MgN.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
118. What is the subscript of potassium in the formula for potassium carbonate?
a. 2
b. 5
c. 3
d. 4
e. 1
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 60
Chapter 02 – Atoms, Molecules, and Ions
119. What is the formula for sodium peroxide?
a. Na3O2
b. NaO
c. Na2O
d. NaO2
e. Na2O2
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
120. What is the formula for the chlorate of ytterbium(III)?
a. Yb(ClO4)2
b. YbCl2
c. Yb2(ClO3)3
d. YbCl3
e. Yb(ClO3)3
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 61
Chapter 02 – Atoms, Molecules, and Ions
121. What is the formula for the nitride of europium(III)?
a. EuN
b. Eu2N3
c. Eu(NO3)2
d. Eu(NO3)3
e. Eu(NO2)3
ANSWER:
a
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.56 – Write the formula of an ionic compound from its name.
:
(Example 2.5)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
122. The correct name for LiCl is
a. monolithium chloride.
b. lithium chloride.
c. lithium(I) chloride.
d. monolithium monochloride.
e. lithium monochloride.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.58 – Name a binary compound from its formula. (Example 2.6)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
ionic compound | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 62
Chapter 02 – Atoms, Molecules, and Ions
123. The chemical name for the model
is
a. dinitrogen tetroxide.
b. nitrogen tetroxide.
c. nitrogen oxide.
d. nitric oxide.
e. nitrogen trioxide
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIV GENE.EBBI.13.59 – Name a binary molecular compound from its molecular model.
ES:
(Example 2.8)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
binary molecular compound | nomenclature of simple compound
OTHER:
general chemistry
124. The chemical name for the binary, non-ionic molecule with the formula HI is
a. hydrogen iodide.
b. monohydrogen iodide.
c. hydride iodide.
d. hydrogen iodine.
e. monohydrogen iodine.
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.60 – Name a binary molecular compound from its molecular
model.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 63
Chapter 02 – Atoms, Molecules, and Ions
125. The formula for hypochlorous acid is
a. HClO4.
b. HClO.
c. HCl.
d. HClO2.
e. HClO.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.61 – Learn the approach for naming binary acids and oxoacids.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
acid | nomenclature of simple compound
OTHER:
general chemistry
126. Which name–formula pair is incorrect?
a. HNO3, nitric acid
b. H3PO4, phosphoric acid
c. HClO, hypochlorous acid
d. HCl, hydrochloric acid
e. HBr, perchloric acid
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES: GENE.EBBI.13.61 – Learn the approach for naming binary acids and oxoacids.
TOPICS:
early atomic theory
chemical substance
Copyright Cengage Learning. Powered by Cognero.
Page 64
Chapter 02 – Atoms, Molecules, and Ions
127. Which name–formula pair is incorrect?
a. hypochlorous acid, HClO2
b. titanium(IV) carbide, TiC
c. strontium nitride, Sr3N2
d. magnesium sulfate heptahydrate, MgSO4·7H2O
e. dinitrogen tetroxide, N2O4
ANSWER:
a
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.8
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.61 – Learn the approach for naming binary acids and oxoacids.
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
nomenclature of simple compound
OTHER:
general chemistry
128. The oxoanion that comes from nitric acid is
a. N2O3–.
b. NO3–.
c. HNO3–.
d. NO–.
e. NO2–.
ANSWER:
b
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.8
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.62 – Write the name and formula of an anion from the acid.
:
(Example 2.9)
TOPICS:
early atomic theory
chemical substance
KEYWORDS:
acid | nomenclature of simple compound
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 65
Chapter 02 – Atoms, Molecules, and Ions
129. For the following balanced chemical equation, which substance represents the catalyst?
2CO(g) + 2NO(g)
2CO2(g) + N2(g)
a. NO(g)
b. CO(g)
c. CO2(g)
d. N2(g)
e. Rh(s)
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.9
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.63 – Identify the reactants and products in a chemical equation.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
writing equation
OTHER:
general chemistry
130. What is the balanced chemical equation that represents the following reaction?
a. 6H + 2N → 2NH3
b. 6H + 2N → 2HN3
c. 2N + 2H3 → 2H3N
d. 6H + 2N → 2N3H
e. 3H2 + N2 → 2NH3
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.9
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.63 – Identify the reactants and products in a chemical equation.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
writing equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 66
Chapter 02 – Atoms, Molecules, and Ions
131. In the following chemical equation, what is the reactant?
CuSO4·5H2O(s) → CuO(s) + SO3(g) + 5H2O(l)
a. CuSO4·5H2O(s)
b. H2O(l)
c. CuO(s)
d. SO3(g)
e. CuSO4(s)
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.9
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.63 – Identify the reactants and products in a chemical equation.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
writing equation
OTHER:
general chemistry
132. Which is a correct balanced chemical equation corresponding to the following description of a chemical
reaction?
Hydrochloric acid reacts with magnesium metal to produce aqueous magnesium chloride and hydrogen gas.
a. 2HCl(aq) + Mg(s) → MgCl2(aq) + 2H(g)
b. 2HCl(aq) + Mg(s) → MgCl2(aq) + H2(g)
c. 2HCl(aq) + Mg(s) → MgCl(aq) + H2(g)
d. 2HCl(aq) + Mg(aq) → MgCl2(s) + H2(g)
e. HCl(aq) + Mg(s) → MgCl(aq) + H(g)
ANSWER:
b
POINTS:
1
DIFFICULTY:
moderate
REFERENCES: 2.9
HAS VARIABLES: False
LEARNING OBJE GENE.EBBI.13.64 – Write chemical equations using appropriate phase labels,symbols of
CTIVES:
reactions conditions, and the presence of a catalyst.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 67
Chapter 02 – Atoms, Molecules, and Ions
133. Sulfuric acid reacts with aqueous sodium hydroxide to produce aqueous sodium sulfate and liquid
water. Which is the correct balanced chemical equation for this reaction description?
a. H2SO4(aq) + 2NaOH(aq) → Na2S(aq) + 2H2O(l) + 2O2(g)
b. H2S(aq) + 2NaOH(aq) → Na2S(aq) + 2H2O(l)
c. H2SO4(aq) + NaOH(aq) → NaSO4(aq) + H2O(g)
d. H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2H2O(l)
e. H2SO4(aq) + (NaOH)2(aq) → Na2SO4(aq) + 2H2O(l)
ANSWER:
d
POINTS:
1
DIFFICULTY:
moderate
REFERENCES: 2.9
HAS VARIABLES: False
LEARNING OBJE GENE.EBBI.13.64 – Write chemical equations using appropriate phase labels,symbols of
CTIVES:
reactions conditions, and the presence of a catalyst.
TOPICS:
early atomic theory
chemical reaction
134. How many of the following statements are true concerning chemical equations?
I. Coefficients can be fractions.
II. Subscripts can be fractions.
III. Coefficients represent the relative masses of the reactants and/or products.
IV. Changing the subscripts to balance an equation can be done only once.
V. Atoms are conserved when balancing chemical equations.
a. 3
b. 4
c. 2
d. 5
e. 1
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 68
Chapter 02 – Atoms, Molecules, and Ions
135. When the following equation is balanced with lowest whole-number coefficients, what is the coefficient
for NO(g)?
___NH3(g) + ___O2(g) → ___NO(g) + ___H2O(g)
a. 3
b. 2
c. 5
d. 4
e. 1
ANSWER:
d
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
136. The complete combustion of propane, C3H8, yields carbon dioxide and water:
— C3 H8 + — O2→ — CO2 + — H2O
The smallest whole-number coefficient of oxygen in the balanced equation is
a. 6.
b. 3.
c. 7.
d. 4.
e. 5.
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.10
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 69
Chapter 02 – Atoms, Molecules, and Ions
137. The products of the combustion of acetaldehyde with oxygen are shown in the following equation:
__ CH3CHO + __ O2 → __ CO2 + __ H2O
When properly balanced, the equation indicates that ____ molecules of O2 are required to burn 2 molecules of
CH3CHO.
a. 2
b. 6
c. 4
d. 3
e. 5
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
138. The complete combustion of octane, C8H18, yields carbon dioxide and water:
— C8 H18 + — O2→ — CO2 + — H2O
The smallest whole-number coefficient of oxygen in the balanced equation is
a. 24.
b. 26.
c. 22.
d. 23.
e. 25.
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
True
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 70
Chapter 02 – Atoms, Molecules, and Ions
139. Energy from the following reaction provided the lift for the moon lander:
__ (CH3)2N2H2 + __ N2O4 → __ N2 + __ H2O + __ CO2
When the equation is balanced, the smallest whole-number coefficient of nitrogen is
a. 5.
b. 4.
c. 1.
d. 3.
e. 2.
ANSWER:
d
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
140. Treatment of sodium borohydride with sulfuric acid is a convenient method for the preparation of
diborane:
__ NaBH4 + __ H2SO4 → __ B2H6 + __ H2 + __Na2SO4
When the equation is balanced, the lowest whole number coefficient for hydrogen is
a. 5.
b. 2.
c. 4.
d. 1.
e. 3.
ANSWER:
b
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 71
Chapter 02 – Atoms, Molecules, and Ions
141. All the following may change during a chemical reaction except
a. the total volume of the system.
b. the density of the system.
c. the temperature of the system.
d. the total number of atoms in the system.
e. the total number of molecules in the system.
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
142. The complete combustion of phenylhydrazine, C6H5NHNH2, with the oxidizer dinitrogen tetraoxide is
shown in the following equation:
__ C6H5NHNH2 + __ N2O4 → __ CO2 + __ H2O + __ N2
When this equation is balanced, the sum of all the coefficients (using smallest whole numbers) is
a. 30.
b. 20.
c. 25.
d. 10.
e. 15.
ANSWER:
b
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 72
Chapter 02 – Atoms, Molecules, and Ions
143. The complete combustion of pentane yields carbon dioxide and water. When the equation
__ C5H12(l) + __ O2(g) → __ CO2(g) + __ H2O(l)
is balanced, the ratio of the coefficient of CO2 to the coefficient of O2 is
a. 8:5.
b. 8:6.
c. 6:5.
d. 5:6.
e. 5:8.
ANSWER:
e
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
144. A reaction occurs between sodium carbonate and hydrochloric acid, producing sodium chloride, carbon
dioxide, and water. Which is the correct set of coefficients, respectively, for the balanced reaction?
a. 3 6 6 3 4
b. 8 6 5 10 5
c. 5 10 10 5 5
d. 1 2 2 1 1
e. none of these
ANSWER:
d
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 73
Chapter 02 – Atoms, Molecules, and Ions
145. When the equation
__ (CH3)2NNH2 + __ N2O4 → __ N2 + __ H2O + __ CO2
is balanced, the sum of all the coefficients (simplest whole number) is
a. 13.
b. 12.
c. 9.
d. 10.
e. 11.
ANSWER:
b
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
146. When the equation
__ C5H6N2OS(s) + __ O2(g) → __ CO2(g) + __ H2O(l) + __ N2(g) + __ SO2(g)
is balanced, the sum of all the coefficients (simplest whole number) is
a. 19.
b. 20.
c. 24.
d. 18.
e. 21.
ANSWER:
d
POINTS:
1
DIFFICULTY:
difficult
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 74
Chapter 02 – Atoms, Molecules, and Ions
147. Ammonia can be made by reaction of water with magnesium nitride:
__ Mg3N2(s) + __ H2O(l) → __ Mg(OH)2(s) + __ NH3(g)
When the equation is properly balanced, the sum of the coefficients is
a. 6.
b. 14.
c. 12.
d. 9.
e. 8.
ANSWER:
c
POINTS:
1
DIFFICULTY:
moderate
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.65 – Master techniques for balancing chemical equations. (Example
:
2.12)
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
148. Which one of the following equations is properly balanced?
a. Sn + 4HNO3 → SnO2 + 4NO2 + 2H2O
b. 2Na2SO4 + 3Bi(NO3)3 → Bi2(SO4)3 + 9NaNO3
c. CH3CHO + 3O2 → 2CO2 + 2H2O
d. NH4NO3 → 2H2O + N2
e. Na2CO3 + 2H2SO4 → Na2SO4 + 2H2O + CO2
ANSWER:
a
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.66 – Determine if a chemical reaction is balanced.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 75
Chapter 02 – Atoms, Molecules, and Ions
149. Which of the following chemical equations is not balanced?
a. NH4NO3 → N2O + 2H2O
b. C12H22O11 → 12C + 11H2O
c. 2NH4SCN + Ba(OH)2 • 8H2O → 2NH3 + 10H2O + Ba(SCN)2
d. (NH4)2Cr2O7 → N2O + Cr2O3 + 4H2O
e. 2Mg + CO2 → 2MgO + C
ANSWER:
d
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.66 – Determine if a chemical reaction is balanced.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
150. Which of the following equations is not balanced?
a. 2Sb2OS2 + 10O2 → 2Sb2O5 + 4SO3
b. (NH4)2Cr2O7 → N2 + 4H2O + Cr2O3
c. C12H22O11 + 12O2 → 12CO2 + 11H2O
d. 2NaCl + Pb(NO3)2 → PbCl2 + 2NaNO3
e. Fe3O4 + 3CO → 3Fe + 3CO2
ANSWER:
e
POINTS:
1
DIFFICULTY:
easy
REFERENCES:
2.10
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.66 – Determine if a chemical reaction is balanced.
TOPICS:
early atomic theory
chemical equation
KEYWORDS:
balancing chemical equation
OTHER:
general chemistry
Copyright Cengage Learning. Powered by Cognero.
Page 76
Chapter 02 – Atoms, Molecules, and Ions
151. Identify the true statement(s) about a nucleus.
1. A nucleus is an atom’s central core.
2. A nucleus is positively charged.
3. A nucleus contains most of an atom’s mass.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 3
e. 2 and 3
ANSWER:
d
POINTS:
1
DIFFICULTY:
Easy
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVE GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model
S:
of the atom.
TOPICS:
The Structure of the Atom
152. _____ are very light, negatively charged particles that exists in the region around an atom’s positively
charged nucleus.
a. Protons
b. Electrons
c. Bosons
d. Positrons
e. Neutrons
ANSWER:
b
POINTS:
1
DIFFICULTY:
Easy
REFERENCES:
2.2
HAS VARIABLES:
False
LEARNING OBJECTIVES GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the
:
electron.
TOPICS:
The Structure of the Atom
Copyright Cengage Learning. Powered by Cognero.
Page 77
Chapter 02 – Atoms, Molecules, and Ions
153. An important class of molecular substances that contain carbon combined with other elements, such as
hydrogen, oxygen, and nitrogen, is _____.
a. organic compounds
b. radioactive isotones
c. radioactive isotopes
d. inorganic compounds
e. stable isotopes
ANSWER:
a
POINTS:
1
DIFFICULTY:
Moderate
REFERENCES:
2.7
HAS VARIABLES: False
TOPICS:
Organic Compounds
154. Which of the following is/are true about urea?
1. Urea is a molecular compound in human urine.
2. Urea can be synthesized from ammonia and cyanic acid.
3. Urea belongs to the hydrocarbon group.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER:
d
POINTS:
1
DIFFICULTY:
Moderate
REFERENCES:
2.7
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.51 – Recognize some functional groups of organic molecules.
TOPICS:
Organic Compounds
Copyright Cengage Learning. Powered by Cognero.
Page 78
Chapter 02 – Atoms, Molecules, and Ions
155. A _____ is the symbolic representation of a chemical reaction in terms of chemical formulas.
a. chemical bond
b. chemical reagent
c. chemical energy
d. chemical reactant
e. chemical equation
ANSWER:
e
POINTS:
1
DIFFICULTY:
Easy
REFERENCES:
2.9
HAS VARIABLES:
False
LEARNING OBJECTIVES: GENE.EBBI.13.63 – Identify the reactants and products in a chemical equation.
TOPICS:
Writing Chemical Equations
Copyright Cengage Learning. Powered by Cognero.
Page 79
Document Preview (79 of 1255 Pages)
You are viewing preview pages of the document. Purchase to get full access instantly.
-37%
General Chemistry, 11th Edition Test Bank
$18.99 Save:$11.00(37%)
Store
Emma Johnson
Best Selling
The World Of Customer Service, 3rd Edition Test Bank
$18.99 Save:$11.00(37%)
Chemistry: Principles And Reactions, 7th Edition Test Bank
$18.99 Save:$11.00(37%)
Solution Manual for Designing the User Interface: Strategies for Effective Human-Computer Interaction, 6th Edition
$18.99 Save:$11.00(37%)
Data Structures and Other Objects Using C++ 4th Edition Solution Manual
$18.99 Save:$11.00(37%)
Test Bank for Hospitality Facilities Management and Design, 4th Edition
$18.99 Save:$11.00(37%)
2023-2024 ATI Pediatrics Proctored Exam with Answers (139 Solved Questions)
$18.99 Save:$11.00(37%)
