Sol'ns Rev. Prob. Quiz 1 09-103 F 06

Sol'ns Rev. Prob. Quiz 1 09-103 F 06 - Solutions to Review...

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Solutions to Review Problems for Quiz 1 09-103 Fall 2006 In addition to the questions below, I encourage you to take the Online Quizzes for Chapter 1 and the applicable questions for Ch. 2 (Sec. 2.1-2.5), focusing particularly on those questions reflecting the material covered in lectures, warm-ups 1-4, practice problems 1 I. Circle the letter of the best answer for the following multiple choice questions: 1. Dry air contains: (a) 21% O 2 by volume (b) 78% N by volume (c) 78% N 2 by mass (d) 21% O by volume (e) 21% O 2 by mass 2. Ozone is considered an air pollutant in the ________ but is a valuable protective layer in the __________. A. troposphere; stratosphere B. stratosphere; mesosphere C. stratosphere; troposphere D. mesosphere; stratosphere . 3 Which of the following substances cannot be further broken down by physical means? (a) steel (b) ammonia solution (c) ice (d) ketchup (e) $1 bills 4. Carbon monoxide (a) is formed during combustion when an insufficient amount of oxygen is present (b) production is unaffected by a well tuned engine (c) readily binds to copper in hemoglobin the blood (d) has only a single bond between its atoms (e) has a variable percentage of carbon by mass 5. Which of the following reactions is not involved in the production of sulfuric acid as an atmospheric pollutant? (a) S (in coal) + O 2 SO 2 + ash (b) 2 SO 2 + O 2 2SO 3 (c) H 2 O + SO 3 H 2 SO 4 (d) 2 SO 2 S 2 O 4 (e) none of the above 6. The direct combustion of nitrogen gas (a) occurs readily at room temperature (b) produces NO (c) produces N 2 O (d) produces NO 2 (e) produces HNO 3 7. The periodic table (a) has elements arranged in order of increasing atomic number (b) has rows (or periods) that represent energy levels in which electrons are arranged (c) has groups containing elements with similar physical and chemical properties (d) places metals at the left of the “staircase”
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Solutions to Review Problems for Quiz 1 09-103 Fall 2006 (e) all of the above 8. What two factors are considered when determining the risk assessment for air pollutants? A. exposure and ppm
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Sol'ns Rev. Prob. Quiz 1 09-103 F 06 - Solutions to Review...

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