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Study Resources (Chemistry)

51) Which of the following is already in its empirical formula? A) C22H34O10 B) C6H6 C) C6H12O3 D) C5H12O2 E) none of the above 52) The chemical formula CH2O can be classified as: A) not enough information B) molecular only. C) empirical only. D) empirical, possibly molecular. E) none of the above 53) A chromium oxide compound contains 104.0 grams of chromium.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) The reaction of baking soda and vinegar to produce carbon dioxide gas is an example of a precipitation reaction. 2) The reaction of carbonate ion with magnesium ion to form solid magnesium carbonate is an example of an oxidation reduction reaction. 3) Combustion reactions are a subcategory.
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31) What type of a reaction occurs when a potassium nitrate solution is mixed with a barium acetate solution? A) precipitation B) acid-base neutralization C) oxidation-reduction D) gas evolution E) no reaction 32) A precipitate is expected to be formed when an aqueous solution of sodium sulfate is added to an aqueous solution of A) iron(III).
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Multiple Choice Questions 1) Which of the following statements about Lewis structures is FALSE? A) An octet is when an atom has 8 valence electrons. B) A duet is a stable electron configuration for helium. C) An ionic bond occurs when electrons are transferred. D) A covalent bond occurs when electrons are shared. E) All of.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) Greenhouse gases affect the temperature of the earth by blocking sunlight from reaching earth. 2) Global warming is due to the greenhouse gases preventing heat from Earth escaping into space. 3) The primary greenhouse gas is carbon dioxide. 4) The primary source for the rising carbon dioxide levels.
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31) What is the electron geometry if you have 4 electron groups around the center atom? A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) not enough information 32) What is the electron geometry if you have 2 electron groups around the center atom? A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) not enough information 33) What.
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Multiple Choice Questions 1) The average global temperature depends on all factors EXCEPT what? A) the amount of incoming sunlight B) the amount of outgoing heat lost to space C) the amount of greenhouse gases D) the angle of the earth's surface in relation to the incoming sunlight E) All of the above are factors. 2) Which.
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21) What is the correct Lewis structure for CN?? A) [C-N]? B) [:-:]? C) [=:]? D) [: C≡ N :]? E) none of the above 22) The correct Lewis structure for BF3 would have exactly: A) 1 double bond. B) 2 double bonds. C) 1 triple bond. D) no double bonds. E) none of the above 23) Which symbol should be used.
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31) The correct electron configuration for fluorine is: 1s22s22p5. 32) Transition metal elements always contain at least one "d" block electron. 33) The Pauli exclusion principle states that orbitals may hold no more than two electrons of identical spins. 34) The orbital diagram for fluorine shows 1 unpaired electron in a p orbital. 35).
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31) One mole of ammonium nitrite contains:                                                        A) 2 moles of nitrogen atoms. B) 4 moles of hydrogen atoms. C) 2 moles of oxygen atoms. D) All of A, B, and C. E) None of A, B, and C. 32) One mole of potassium sulfate contains: A) 4 moles of oxygen. B) 2 moles.
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Multiple Choice Questions 1) A reaction which forms a gaseous product is an example of a(n)________. A) oxidation-reduction reaction B) combustion reaction C) precipitation reaction D) gas evolution reaction E) none of the above 2) A reaction which forms a solid product is an example of a(n)________. A) oxidation-reduction reaction B) combustion reaction C) precipitation reaction D) gas evolution.
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21) An aqueous solution is: A) any liquid with another compound dissolved in it. B) an ionic compound with water dissolved in it. C) water with a molecular compound dissolved in it. D) water with another compound dissolved in it. E) none of the above 22) Which of the following compounds is INSOLUBLE? A) potassium acetate B) lithium.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) The chemical formula clearly indicates the relationship between the mass of each element in the formula. 2) Mass is used as a method of counting atoms. 3) The numerical value of the mole is defined as being equal to the number of atoms in exactly 12 grams.
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Multiple Choice Questions 1) Which of the following statements about light is FALSE? 2) Which of the statements about light is FALSE? A) Light travels through space at a speed of 3.00 × 108 m/s. B) Light travels much faster than sound. C) A packet of light energy is called a photon. D) A characteristic feature.
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51) What type of a reaction occurs when a hydrochloric acid solution is mixed with a sodium bicarbonate solution? A) precipitation B) acid-base neutralization C) oxidation-reduction D) gas evolution E) no reaction 52) Which of the following would NOT be a product from mixing hydrochloric acid with a solution of sodium sulfite? A) H2O (l) B) SO2.
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21) The energy of an electron orbit is quantized. 22) The energy of each Bohr orbit increases with increasing value of "n", but levels become more closely spaced as "n" increases. 23) Electrons behave like particles and we can describe their exact paths. 24) An orbital is a probability map showing exactly where.
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Multiple Choice Questions 1) What is the correct value for Avogadro's number? A) 6.022 × 1023 B) 6.022 × 1033 C) 6.023 × 1022 D) 6.022 × 102.3 E) none of the above 2) Which of the following statements about the mole is FALSE? A) The size of a mole of atoms has a reasonable mass. B) A mole.
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21) The key to predicting a precipitation reaction is the formation of an insoluble compound from soluble compounds. 22) A precipitation reaction will occur when sodium chloride is mixed with potassium nitrate. 23) A precipitate will form when you mix solutions of potassium chloride and lead nitrate. 24) We remove the spectator ions.
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21) Which of the following statements about the quantum-mechanical model is FALSE? A) Orbitals are a probability map of finding electrons. B) Electrons do not behave as particles. C) Orbitals are specific paths electrons follow. D) Electron paths cannot be described exactly. E) All of the above are correct statements. 22) The principal quantum number (n): A).
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11) Which form of electromagnetic radiation has the shortest wavelength? A) Radio Waves B) Microwaves C) X-rays D) Gamma Rays E) Infrared Radiation 12) Which form of electromagnetic radiation has the longest wavelength? A) Radio Waves B) Microwaves C) X-rays D) Gamma Rays E) Infrared Radiation 13) Which form of electromagnetic radiation has the highest frequency? A) Radio Waves B) Microwaves C) X-rays D) Gamma Rays E).
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) Bonding theories are used to predict how atoms bond together to form molecules. 2) Drugs to fight HIV have been developed using bonding theory models. 3) Li : is the proper Lewis structure (dot structure) for lithium. 4) A chemical bond is classified as a covalent bond if.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) When the elements are arranged in order of increasing number of protons, certain sets of properties recur periodically. 2) The early scientists who developed the quantum-mechanical model were bewildered by the model and it altered our fundamental view of matter. 3) Light is a type of matter. 4).
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41) What is the electron configuration for Ga? A) 1s22s22p63s23p63d104s24p6 B) 1s22s22p63s23p64s23d104p1 C) 1s22s22p63s23p53d104s24p1 D) 1s22s22p63s23p64s24d104p1 E) none of the above 42) What is the electron configuration for P? A) [Ar]3s23p64s23d104p3 B) [Ne]1s21p62s22p3 C) [Ne]3s23p3 D) [Ar]3s23p3 E) none of the above 43) How many core electrons are in a chlorine atom? A) 1 B) 17 C) 10 D) 7 E) none of the above 44) How many.
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