Electrochemistry Exam with Answers

Au or zn cl or al v 2 or zn a zn al zn b zn al v 2 c

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Au or Zn Cl - or Al V +2 or Zn a. Zn ; Al; Zn b. Zn ; Al; V +2 c. Zn ; Cl - ; Zn d. Au ; Cl - ; V +2 e. Au ; Cl - ; Zn 15. Consider the following UNBALANCED REDOX reaction in a basic solution: CO 3 -2 (aq) + I - (aq) C (s) + IO 3 - (g) What are the coefficients x, y and z when the reaction is correctly balanced? _x_ CO 3 -2 (aq) + _y_ I - (aq) + _z H 2 O _? C (aq) + _? IO 3 - (g) + _? OH - (g) x y z a. 3 2 3 b. 1 4 12 c. 2 2 0 d. 1 2 3 e. 1 2 1
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