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Question
What is the balanced spontaneous reaction and standard cell potential of an electrochemical cell constructed from half cells with the following half reactions?
Eº= -0.763V
Eº= -0.130V
A) Pb2+(aq) + Zn(s) → Pb(s) + Zn2+(aq); 0.633 V
B) Pb(s) + Zn2+(aq) → Pb2+(aq) + Zn(s); -0.633 V
C) Pb2+(aq) + Zn2+(aq) → Pb(s) + Zn(s); -0.893 V
D) Pb2+(aq) + Zn(s) → Pb(s) + Zn2+(aq); 0.317 V
E) Pb(s) + Zn2+(aq) → Pb2+(aq) + Zn(s); -0.317 V
Answer
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