30  of 48 The time needed to plate out 1.75 g Ni(Ni2+) using a 15-amp current is about   380 minutes   190 minutes   3.2 minutes   6.4 minutes

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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30  of 48
The time needed to plate out 1.75 g Ni(Ni2+) using a 15-amp current is about
  380 minutes
  190 minutes
  3.2 minutes
  6.4 minutes

Question

31  of 48
The voltage of a concentration cell is unaffected by the
  temperature
  concentration of the reactant
  value of F
  concentration of the product

Question

32  of 48
After learning about electrolytic cells, a student tries to copper-plate a metal spoon using a 1.00 M CuSO4 solution. The student notices that when the spoon is placed into the solution, it turns copper even without the battery connected. Which explanation is most likely the reason?
  the electrolytic solution is much more concentrated than standard conditions
  there is a small amount of electricity in human skin that is causing this
  the reaction is already spontaneous
  another non-redox reaction must be occurring
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