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Study Resources (Chemistry)

21) An acetylene molecule contains 2 atoms of carbon. The number 2 represents how many significant figures? A) one B) two C) three D) infinite 22) Round off 00907506 to four significant figures. A) 0091 B) 9076 C) 9100 D) 9.075 × 105 23) The width, length, and height of a large, custom-made shipping crate are 1.22 m, .
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18.3   Matching Questions Select the correct carbohydrate for each description. A) sucrose B) fructose C) amylose D) lactose E) cellulose F) glycogen G) galactose 1) a carbohydrate that cannot be digested by humans 2) a carbohydrate that stores energy in the human body 3) a carbohydrate that is used to build cell walls in plants 4) a monosaccharide that combines with.
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101) Molecules can be described as A) mixtures of two or more pure substances. B) mixtures of two or more elements that have a specific ratio between components. C) two or more atoms chemically joined together. D) heterogeneous mixtures. E) homogeneous mixtures. 102) Give the composition of water. A) two hydrogen atoms and two oxygen atoms B) one.
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Matching Questions Match the following. A) 10-6 B) 10-9 C) 10-1 D) 10-3 E) 103 F) 10-2 G) 106 1) kilo Diff: 1     Type: MA     Var: 1     Page Ref: 1.3 2) centi Diff: 1     Type: MA     Var: 1     Page Ref: 1.3 3) milli Diff: 1     Type: MA     Var: 1     Page Ref: 1.3 4) nano Diff: 1     Type: MA     Var: 1     Page Ref: 1.3 5) micro Diff: 1    .
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18.4   True/False Questions 1) Glucose is also known as dextrose. 2) Fructose is a aldose. 3) Sucrose is a disaccharide. 4) Sucrose is made up of glucose units only. 5) Amylopectin is a straight-chain polysaccharide. 6) Hydrogenation of a double bond in a triacylglycerol requires a catalyst. 7) Most plant lipids.
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Match the following. A) unsaturated B) animals C) soluble in water D) saponification E) lower F) higher G) insoluble in water H) hydrogenation I) plants J) ester 9) the functional group of triacylglycerols 10) a fatty acid with at least one double bond 11) the process of converting unsaturated fats into saturated fats 12) the melting points of saturated fats compared to unsaturated.
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Algorithmic Questions 1) An atom of 14C contains ________ protons. A) 6 B) 20 C) 8 D) 10 E) 14 2) An atom of 131Xe contains ________ electrons. A) 131 B) 185 C) 77 D) 123 E) 54 3) The atomic number of an atom of 80Br is ________. A) 115 B) 35 C) 45 D) 73 E) 80 4) An ion has 8 protons, 9 neutrons, and 10.
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  Multiple Choice Questions 1) An ionic bond is best described as A) the sharing of electrons. B) the transfer of electrons from one atom to another. C) the attraction that holds the atoms together in a polyatomic ion. D) the attraction between two nonmetal atoms. E) the attraction between two metal atoms. 2) When forming ionic compounds,.
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31) Identify the symbol for fluorine. A) F B) Fl C) Fo D) Fu E) Fr 32) Identify the symbol for silver. A) S B) Si C) Ar D) Ag E) Sl 33) Identify a cation. A) An atom that has lost (an) electron(s). B) An atom that has gained (an) electron(s). C) An atom that has lost (a) proton(s). D) An atom that has gained.
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31) Identify the perchlorate ion. A) Cl B) Cl C) Cl D) ClO- E) Cl- 32) Identify the nitrite ion. A) N B) N C) N D) E) N3- 33) Identify the name for SnO. A) tin(I) oxide B) tin(II) oxide C) tin(III) oxide D) tin(IV) oxide 34) Identify the formula for barium nitrite. A) Ba3N2 B) BaNO3 C) BN D) Ba(NO2)2 E) B(NO2)3 35) Identify the formula for strontium nitride. A) Sr3N2 B).
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  Multiple Choice Questions 1) In a chemical reaction, matter is neither created nor destroyed. Which law does this refer to? A) Law of definite proportions B) Law of the conservation of mass C) Law of modern atomic theory D) Law of multiple proportions E) First law of thermodynamics 2) If 3.6 g of chlorine combines with sodium.
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51) Carbon has two naturally occurring isotopes, carbon-12 and carbon-13. The more common isotope of carbon is carbon-12 with an abundance of 98.93% while carbon-13 has an atomic mass of 13.00335 amu. Calculate the atomic mass of carbon-12 if the atomic mass of carbon is 12.0107 amu. A) 13.1 amu B) 13.0.
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11) What is the empirical formula for Hg2(NO3)2? A) Hg2(NO3)2 B) HgNO3 C) Hg(NO3)2 D) Hg2NO3 E) Hg4(NO3)4 12) Which of the following is an atomic element? A) Br B) H C) N D) O E) Mg 13) Which of the following is a molecular element? A) Kr B) Ag C) S D) Mg E) Ti 14) Which of the following is a molecular element? A) Mg B) Ar C) Xe D).
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51) Identify the formula for copper (II) sulfate pentahydrate. A) Cu2SO3?H5 B) Cu2S?H2O C) CuS?5H2O D) (CuSO4)5 E) CuSO4?5H2O 52) Determine the name for H2CO3. A) carbonous acid B) dihydrogen carbonate C) carbonic acid D) hydrocarbonic acid E) hydrocarbide acid 53) Determine the name for aqueous HBr. A) bromic acid B) bromous acid C) hydrobromous acid D) hydrogen bromate E) hydrobromic acid 54) Identify the formula for sulfurous.
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18.2   Bimodal Questions 1) The three elements found in all carbohydrates are ________, ________, and ________. A) carbon, hydrogen, water B) nitrogen, oxygen, carbon C) nitrogen, oxygen, hydrogen D) carbon, hydrogen, oxygen E) carbon, nitrogen, hydrogen 2) In a simple model of atherosclerosis and heart disease, the compound that forms plaques that adhere to the walls of.
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31) Barium belongs to the ________ group of the periodic table. A) alkali metal B) alkaline earth metal C) halogen D) noble gas 32) Which of the following elements has chemical properties similar to tellurium? A) fluorine B) hydrogen C) nitrogen D) sulfur 33) Which of the following elements is a gas at room temperature? A) bromine B) carbon C) helium D) sodium 34).
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Short Answer Questions 1) Define matter. 2) A sample of liquid isopropyl alcohol is placed in a sealed container. Some of the volatile isopropyl alcohol vaporizes. Does the mass of the sealed container and its contents change during the vaporization? Explain. 3) What is the difference between a physical property and a chemical.
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101) Which of the following statements is TRUE? A) Halogens are very reactive metals. B) The alkali metals are fairly reactive. C) Sulfur is a transition-group element. D) Noble gases readily form ionic compounds. E) Zn is a main-group metal. 102) Which of the following describes a metal? A) Poor conductor of heat B) Good conductor of electricity C).
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61) How many significant figures are in the measurement 20.300 m? A) 3 B) 4 C) 5 D) 1 E) 2 62) What answer should be reported, with the correct number of significant figures, for the following calculation? (433.621 - 333.9) × 11.900 A) 1.19 × 103 B) 1.187 × 103 C) 1.1868 × 103 D) 1.18680 × 103 E) 1.186799 ×.
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41) The base sequence of the strand of DNA complementary to the segment -TGGCAAC- is: A) TGGCAAC- B) -ACCGTTG- C) -ACCGUUG- D) -UCCGTTG- E) -ACGCTUG- 42) The two new DNA molecules formed in replication A) are complementary to the original DNA. B) both contain only two new daughter DNA strands. C) both contain only the parent DNA.
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11) Identify the unit of measurement that is a SI base unit of measurement. A) second B) Celsius C) cup D) pound E) yard 12) Kilogram is a measure of A) mass. B) time. C) temperature. D) length. E) volume. 13) Metre is a measure of A) mass. B) time. C) temperature. D) length. E) volume. 14) Kelvin is a measure of A) mass. B) time. C) temperature. D) length. E) volume. 15) Second.
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Matching Questions Match the following. A) Si B) Fe C) Mg D) C E) K 1) magnesium Diff: 1     Type: MA     Var: 1     Page Ref: 2.7 2) carbon Diff: 1     Type: MA     Var: 1     Page Ref: 2.7 3) potassium Diff: 1     Type: MA     Var: 1     Page Ref: 2.7 4) iron Diff: 1     Type: MA     Var: 1     Page Ref: 2.7 5) silicon Diff: 1     Type: MA     Var:.
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71) What answer should be reported, with the correct number of significant figures, for the following calculation? 100 × 10-1.4 + log(1.6 × 102) A) 6.2 B) 6.19 C) 6.18 D) 6 E) 6.185 72) What answer should be reported, with the correct number of significant figures, for the following calculation? A) 0.037 B) 0.0374 C) 0.03740 D) 0.037399 E) 0.0373995 73) What.
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11) Identify the description of an atom. A) neutrons and electrons in nucleus; protons in orbitals B) neutrons in nucleus; protons and electrons in orbitals C) protons and neutrons in nucleus; electrons in orbitals D) protons and electrons in nucleus; neutrons in orbitals E) electrons in nucleus; protons and neutrons in orbitals 12) Identify the charges.
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21) Which of the following is a molecular compound? A) CuCl2 B) N2O4 C) NaNO3 D) SrSO3 E) RbBr 22) Which of the following is an acid in aqueous solution? A) CaCO3 B) HClO2 C) CH3OCH3 D) NaCl E) KNO3 23) Which of the following is an acid in aqueous solution? A) NH3 B) NaF C) Ca(C2H3O2)2 D) HI E) KCl 24) Identify the cyanide ion. A) B) H C).
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  Multiple Choice Questions 1) Which of the following is an example of physical change? A) Sugar is dissolved in water. B) Tea is brewed. C) Dry ice sublimes. D) Ice (solid water) melts. E) All of the above are examples of physical change. 2) Which of the following is an example of physical change? A) Dew forms on.
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Classify each protein by function. A) protection B) contractile C) catalytic D) transport E) structural 20) trypsin for the hydrolysis of protein 21) lipoproteins in the blood 22) collagen in tendons and cartilage 23) antibodies 24) actin in muscle Match the correct term in enzyme action with each description. A) active site B) enzyme-substrate complex C) lock-and-key theory 25) the temporary combination of.
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11) What is the chemical symbol for copper? A) Co B) Cr C) Cu D) C 12) Which element has the chemical symbol Ru? A) rubidium B) ruthenium C) rutherfordium D) rhodium 13) Which element has the chemical symbol S? A) selenium B) silicon C) sulfur D) scandium 14) An atom that has an atomic number of 20 and a mass number of 42 is.
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41) Identify the name for Sr(NO3)2?4H2O. A) tin(II) nitrate tetrahydrate B) strontium nitrate tetrahydrate C) scandium nitrate tetrahydrate D) tin(III) nitrate tetrahydrate E) tin(II) nitrate quadhydrate 42) Identify the name for Sn(SO4)2. Remember that Sn forms several ions. A) tin(I) sulfite B) tin(IV) sulfate C) tin sulfide D) tin(II) sulfite E) tin(I) sulfate 43) Determine the name for CoCl2?6H2O. Remember that Co.
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