Which of the following statements about voltaic and electrolytic cells is correct?
A) The electrons in the external wire flow from cathode to anode in both types of cell.
B) Oxidation occurs at the cathode only in a voltaic cell.
C) The free energy change, Δ G, is negative for an electrolytic cell.
D) The cathode is labeled as positive (+) in a voltaic cell but negative (-) in an electrolytic cell.
E) Reduction occurs at the anode in an electrolytic cell.
Correct Answer:
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