Test Bank for Chemistry an atoms first approach 2nd edition by Steven S Zumdahl Chapters 1-21 Covered

, Chapter 1 - Chemical Foundations
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Test Bank
Chemistry an atoms first approach 2nd edition
by Steven S Zumdahl Chapters 1-21 Covered




TABLE OF CONTENT Q Q




Review: Measurement and Calculations in Chemistry.
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1. Chemical Foundations.
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2. Atomic Structure and Periodicity.
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3. Bonding: General Concepts.
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4. Molecular Structure and Orbitals.
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5. Stoichiometry.
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6. Types of Chemical Reactions and Solution Stoichiometry.
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7. Chemical Energy.
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8. Gases.
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9. Liquids and Solids.
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10. Properties of Solutions.
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11. Chemical Kinetics.
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12. Chemical Equilibrium.
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13. Acids and Bases.
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14. Acid-Base Equilibria
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, Chapter 1 - Chemical Foundations
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15. Solubility and Complex Ion Equilibria.
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16. Spontaneity, Entropy, and Free Energy.
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17. Electrochemistry.
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18. The Nucleus: A Chemist's View.
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19. The Representative Elements.
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20. Transition Metals and Coordination Chemistry.
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21. Organic and Biological Molecules.
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, Chapter 1 - Chemical Foundations Q Q Q Q




1. Consider the element indium, atomic number 49, atomic mass 114.8 g. The nucleus of an atom of indium-
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112 contains:
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a. 49 protons, 63 neutrons, 49 electrons. Q Q Q Q Q




b. 49 protons, 49 neutrons. Q Q Q




c. 49 protons, 49 alpha particles. Q Q Q Q




d. 49 protons, 63 neutrons. Q Q Q




e. 49 protons, 112 neutrons. Q Q Q




ANSWER: d
POINTS: 1

2. A hypothetical element consists of two isotopes of masses 78.95 amu and 80.95 amu with abundances of 32.
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9% and 67.1%, respectively. What is the average atomic mass of this element?
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a. 79.95 amu Q




b. 78.95 amu Q




c. 79.6 amu Q




d. 80.3 amu Q




e. 80.95 amu Q




ANSWER: d
POINTS: 1

3. Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.23% abundance), X-
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29 (28.976 amu, 4.67% abundance), and X-30 (29.974 amu, 3.10% abundance). Calculate the atomic weight of X.
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a. 28.09 amu Q




b. 48.63 amu Q




c. 27.16 amu Q




d. 28.97 amu Q




e. 86.93 amu Q




ANSWER: a
POINTS: 1

4. The atomic mass of rhenium is 186.2. Given that 37.1% of natural rhenium is rhenium-
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185, what is the other stable isotope?
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a.

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