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Practice Quiz 2.2005

Practice Quiz 2.2005 - Quiz 2 INSTRUCTIONS Test Form A Use...

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Quiz 2 Test Form A February 18, 2005 INSTRUCTIONS: Use a soft, #2 pencil. Your marks must be dark to be counted correctly. Bubble in Form A on your Scantron Form Write your perm number and bubble in your PERM number . Each question is worth 3 points, you will not lose more than 3 points for incorrect answers. You may work out the problems and write your answers on this quiz. Turn in the Scantron form only . Keep the quiz so you can check your work and your answers later. The answers to the quiz will be posted on the web. www.chem.ucsb.edu ANSWERS ARE AT THE END OF THE QUIZ 1. Consider the following reaction: 3 Fe 2 O 3 (s) + CO (g) Fe 3 O 4 (s) + 2 CO 2 (g) H = –39 kJ For this reaction, indicate which of the following statements is true. a) The reaction is exothermic and on average the reactants have stronger bonds than the products. b) The reaction is endothermic and on average the reactants have stronger bonds than the products. c) The reaction is exothermic and on average the products have stronger bonds than the reactants. d) The reaction is endothermic and on average the products have stronger bonds than the reactants. e) On average the bonds of the products are just as strong as the reactants.
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