Which of the following statements about voltaic and electrolyticcells is correct?

The cathode is labeled as positive (+) in a voltaic cell butnegative (–) in an electrolytic cell.

The electrons in the external wire flow from cathode to anode inboth types of cell.

Reduction occurs at the anode in an electrolytic cell.

The free energy change, ?G, is negative for an electrolyticcell.

Oxidation occurs at the cathode only in a voltaic cell.