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practice_midterm_1 - Practice Midterm Exam#1 Chem 2C(B...

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Practice Midterm Exam #1 -- Chem 2C (B) Srping 2004 Name U. C. Davis is an Honor Institution Student I.D. T.A. Do not open the exam until instructed to do so. POTENTIALLY USEFUL INFORMATION and a PERIODIC CHART are given on the last two pages of this exam Problem (possible Points) Points 1-10 (100) 11 (20) 12 (20) 13 (10) TOTAL (150)
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Chem 2C(B) – S04 2 Practice Midterm 1 Name 2 Each multiple choice question is worth 10 points. Circle the BEST answer. Only ONE answer will be graded--if two are circled--the answer will be counted as WRONG! 1. Consider the following reaction: Cd(s) + 2AgCl(s) ––> Cd 2+ (aq) + 2Ag(s) + 2Cl (aq) In this reaction, the reducting agent is (a) Cd(s) (b) AgCl(s) (c) Cd 2+ (d) Ag(s) (e) Cl (aq) 2. The equilibrium constant for the reaction 2Hg(l) + 2Cl (aq) + Ni 2+ (aq) Æ Ni(s) +Hg 2 Cl 2 (s) is 5.6 x 10 -20 at 25 ˚ C. Calculate E ˚ for a cell utilizing this reaction. (a) —0.25 V (b) +0.57 V (c) +1.14 V (d) —0.57 V (e) —1.14 V
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