2C Exam 2 Key

2C Exam 2 Key - Name Spring2008 KEY Exam 2 (Page 1 of 10)...

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Name Spring2008 Exam 2 (Page 1 of 10) Last Name _____________________________ First Name _________________ Lab Sec. # ____; TA : _________________________; Lab day/time : ___________ Andreas Toupadakis, Ph.D. Fall 2010 CHEMISTRY 2C Section A EXAM 2 Instructions: CLOSED BOOK EXAM ! No books, notes, or additional scrap paper are permitted. All information required is contained on the exam. Place all work in the space provided. If you require additional space, use the back of the exam. A scientific calculator may be used (if it is a programmable calculator, its memory must be cleared before the exam). This exam has 11 pages total. (1) Read each question carefully. (2) There is no partial credit given for part I and II. There is partial credit for part III. (3) The last page contains a periodic table and some useful information. You may remove it for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! U.C. Davis is an Honor Institution Possible Points Earned Points # 01 6 (3 points each) / 18 # 7 12 (7 points each) / 42 # 13 (4 points) / 04 # 14 (4 points) / 04 # 15 (4 points) / 04 # 16 (6 points) / 06 # 17 (10 points) / 10 # 18 (12 points) / 12 Total Score (100) / 100 01. a b c d e 02. a b c d e 03. a b c d e 04. a b c d e 05. a b c d e 06. a b c d e 1-6 total points: 7. a b c d e 8. a b c d e 9. a b c d e 10. a b c d e 11. a b c d e 12. a b c d e 7-12 Multiple Choice (circle one ) KEY
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Your Name 2C Fall 2010 Exam 2 (Page 2 of 11) Toupadakis Part I: Concepts (3 points each) No partial credit (right or wrong) 1. Choose the correct statement: ©AT2010F a) Zero order reaction means a reaction with an activation energy equal to zero. b) The integrated rate law expresses how reactant concentration depends on time. c) The half-life of a first order reaction depends on reactant concentrations. d) The half-life of a 2 nd order reaction does not depend on reactant concentration. e) The differential rate law expresses how the rate of a reaction depends on the molecular geometry of the reactants. 2. Choose the incorrect statement: ©AT2010F a) The elementary steps of a reaction must sum up to give the overall reaction. b) A proposed mechanism must always be consistent with the experimentally observed rate law for the overall reaction. c) Intermediates can never be isolated. d) A chemical species that is formed and used up during a chemical reaction is called an intermediate . e)
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2C Exam 2 Key - Name Spring2008 KEY Exam 2 (Page 1 of 10)...

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