An electrochemical cell has the following overall reaction.

Mn(s) + Cu2+(aq) mc018-1.jpg Cu(s) + Mn2+(aq)

The reduction half-reaction has a standard potential of 1.18 V. The oxidation half-reaction has a standard potential of 0.34 V. What is the overall cell potential?

1. –1.52 V
2. –1.18 V
3 .+1.18 V
4. +1.52 V