What is the E°cell for the cell represented by the combination of the following half-reactions? 2Hg2+(aq) + 2e- 
Hg22+(aq) E° = 0.92 V
Cr3+(aq) + 3e- 
Cr(s) E° = -0.74 V
A) -0.18 V
B) 0.18 V
C) 1.28 V
D) 1.66 V
E) 2.12 V
Correct Answer:
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