Question

42.What is the source of the electric current produced by a voltaic cell?

A. a spontaneous oxidation-reduction reaction
B. competing salt bridges
C. non-spontaneous reduction at the cathode
D. an imbalance of ion charges

Answer 1

This is a spontaneos oxidation-reduction reaction. A would be the answer.

Step-by-step explanation:

Answer 2

I think is Gonna be C