Chapter 18 - Chemistry 11e(Brown/LeMay/Bursten/Murphy...

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Chemistry, 11e(Brown/LeMay/Bursten/Murphy) Chapter 18 Chemistry of the Environment 18.1 Multiple-Choice and Bimodal Questions. 1) The liquid portion of the Earth is called the __________. A) stratosphere B) lithosphere C) atmosphere D) hydrosphere E) mesosphere Answer: D Diff: 1 Page Ref: Sec. 18.1 2) The layer of the atmosphere that contains our weather is called the __________. 3) Of the noble gases, __________ is present in highest concentration in dry air at sea level.
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4) The dividing line between the troposphere and stratosphere is known as the __________. 5) The pressure of the atmosphere __________. A) increases with altitude B) follows the same trend as temperature C) decreases with altitude D) follows the reverse trend as temperature E) stays the same Answer: C Diff: 1 Page Ref: Sec. 18.1
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Chemistry, 11e(Brown/LeMay/Bursten/Murphy) Chapter 18 Chemistry of the Environment 6) What is the partial pressure or oxygen (in torr) in the atmosphere when the atmospheric pressure is 760.0 torr? 7) What is/are the product(s) of photodissociation of molecular oxygen?
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8) The C-Cl and C-F bond dissociation energies in 3 CF Cl are 339 kJ/mol and 482 kJ/mol, respectively. The maximum wavelengths of electromagnetic radiation required to rupture these bonds are __________ and __________, respectively. A) 45.0 nm, 307 nm B) 742 nm, 654 nm C) 482 nm, 248 nm D) 353 nm, 248 nm E) 979 nm, 953 nm Answer: D Diff: 3 Page Ref: Sec. 18.2 9) The amount of atomic O relative to 2 O __________.
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10) In the equation below, M is most likely __________. 2 3 O O M O M* + + + A) 2 Cl B) 2 N C) Ne D) 2 CO E) 2 H O Answer: B Diff: 1 Page Ref: Sec. 18.3
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