142A_Exam2A_080511 - Chem 142 VERSION A Summer 2011 CHEM...

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Chem 142 VERSION A Summer 2011 EXAM 1 VERSION A Page 1 of 9 CHEM 142 - Exam 2 Version A !!! DO NOT OPEN THIS EXAM BOOK UNTIL TOLD TO DO SO BY THE INSTRUCTOR !!! Instructor: Dr. Kari Pederson NO GRAPHING CALCULATORS ALLOWED Date: Friday, August 5 ONLY CALCULATORS MAY BE USED AS CALCULATORS (you may not use your cellular phone as a calculator) Time: 9:40-10:40am NO HEADPHONES ALLOWED (EARPLUGS ARE OK) Location: BAG 154 NO HATS WITH BRIMS ALLOWED !!! PLEASE READ THIS !!! Indicate all of the following on your scantron form or five points will be deducted from your exam score: First Name, Last Name, Student Number, Section, Exam Version YOUR FULL NAME: _______________________ ________________________ first name last name YOUR SECTION/SEAT: ________________________ ________________________ discussion section seat number
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Chem 142 VERSION A Summer 2011 EXAM 1 VERSION A Page 2 of 9 Question Points Possible Score 1-8 24 9-16 40 17-24 16 25 20 Scantron Info? -5 TOTAL 100
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Chem 142 VERSION A Summer 2011 EXAM 1 VERSION A Page 3 of 9 MULTIPLE CHOICE: CONCEPTS. 8 @ 3 pts each 24 POINTS TOTAL Please mark the one correct answer for each of the following questions on your scantron. 1. Which of the following statements is(are) false? Oxidation and reduction I. accompany all chemical changes. II. result in a change in the oxidation states of the species involved. III. describe the loss and gain of electron(s), respectively. IV. cannot occur independently of each other. A) I only B) II only C) III only D) IV only E) II, III, and IV 2. In which of the following compounds does nitrogen have the most positive oxidation state? A) NH 4 Cl B) HNO 3 C) N 2 O D) NaNO 2 E) NO 2 3. A rigid container contains 10.0 g of chlorine gas. With the temperature kept constant, 10.0 g of oxygen gas is added. What happens? A) The pressure in the container doubles. B) The pressure in the container increases by less than a factor of 2. C)
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142A_Exam2A_080511 - Chem 142 VERSION A Summer 2011 CHEM...

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