Exam 21: Environmental Chemistry
Exam 1: Chemistry: the Central Science129 Questions
Exam 2: Atoms Molecules and Ions120 Questions
Exam 3: Stoichiometry Ratios of Combination131 Questions
Exam 4: Reactions in Aqueous Solutions144 Questions
Exam 5: Thermochemistry134 Questions
Exam 6: Quantum Theory and the Electronic Structure of Atoms107 Questions
Exam 7: Electron Configuration and the Periodic Table120 Questions
Exam 8: Chemical Bonding I Basic Concepts95 Questions
Exam 9: Chemical Bonding Ii Molecular Geometry and Bonding Theories137 Questions
Exam 10: Gases131 Questions
Exam 11: Intermolecular Forces and the Physical Properties of Liquids and Solids135 Questions
Exam 12: Modern Materials108 Questions
Exam 13: Physical Properties of Solutions147 Questions
Exam 14: Chemical Kinetics114 Questions
Exam 15: Chemical Equilibrium135 Questions
Exam 16: Acids and Bases133 Questions
Exam 17: Acid-Base Equilibria and Solubility Equilibria129 Questions
Exam 18: Entropy Free Energy and Equilibrium61 Questions
Exam 19: Electrochemistry122 Questions
Exam 20: Nuclear Chemistry125 Questions
Exam 21: Environmental Chemistry131 Questions
Exam 22: Coordination Chemistry128 Questions
Exam 23: Metallurgy and the Chemistry of Metals115 Questions
Exam 24: Nonmetallic Elements and Their Compounds119 Questions
Exam 25: Organic Chemistry148 Questions
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What is the wavelength of a photon needed to dissociate an O3 molecule whose bond energy is 107.2 kJ/mol (h =6.63 × 10-34J s; c = 3.0 × 108m/s; and Avogadro's number = 6.022 × 1023 molecules/mole)?
(Multiple Choice)
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Which of the following is a catalyst in the destruction of ozone?
(Multiple Choice)
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The gases spewed into the atmosphere when a volcano erupts are N2,H2S,HCl,HF,CO2,and water vapor.
(True/False)
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What is the name given to SO2 in the troposphere that is oxidized to H2SO4 in the form of aerosol which ends up in wet precipitation?
(Multiple Choice)
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An unusual atmospheric reaction leading to ozone destruction is CF3O + O3 → CF3O2 + O2
The analysis of which has yielded an Arrhenius frequency factor (A)and activation energy of 2.0 × 10-12 cm3 molecule-1 s-1 and 11.6 kJ/mol,respectively.Calculate the rate constant for this reaction at an altitude of 35 km,where the temperature is -34°C.
(Multiple Choice)
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The rate constant of the reaction O + O3 → 2O2 is 7.0 × 105 M-1 s-1 at -40°C and 4.8 × 106 M-1 s-1 at 25°C.Calculate the activation energy of this reaction.
(Multiple Choice)
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Which one of these species exists as a diatomic element at room temperature?
(Multiple Choice)
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What is the meaning of an asterisk beside an atom or molecule?
(Multiple Choice)
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Which of the following has not been blamed on the destruction of the ozone layer?
(Multiple Choice)
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What was responsible for the "orange glow" observed by astronauts on the outside surface of their space shuttle as they orbiting the Earth?
(Multiple Choice)
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What is the layer of the atmosphere called where the concentration of ozone and other gases is low and the temperature decreases with increasing altitude?
(Multiple Choice)
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What is the wavelength of a photon needed to dissociate an S2 molecule whose bond energy is 226 kJ/mol (h = 6.63 × 10-34J s; c = 3.0 × 108m/s; and Avogadro's number = 6.022 × 1023 molecules/mole)?
(Multiple Choice)
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Which one of the following indoor air pollutants has adverse health effects because it is radioactive?
(Multiple Choice)
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What is the name given to the spectacular celestial light shown in the sky resulting from electrons and protons in space ejected from solar eruptions?
(Multiple Choice)
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Give two important reasons why there is so much more Na+ in the oceans than K+,despite their similar abundances in the Earth's crust.
(Essay)
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