1. Given the following notation for an electrochemical cell

         Pt(s) | H₂(g) | H⁺(aq) || Ag⁺(aq) | Ag(s),

what is the balanced overall (net) cell reaction?  

A. H2(g) + 2Ag(s) ® H+(aq) + 2Ag+(aq
B. H2(g) + 2Ag+(aq) ® 2H+(aq) + 2Ag(s)
C.  H2(g) + Ag+(aq) ®  H+(aq) + Ag(s
D. 2H+(aq) + 2Ag(s) ® H2(g) + 2Ag+(aq)
E. 2H+(aq) + 2Ag+(aq) ® H2(g) + 2Ag(s)

2. Calculate E°_cell for the following (nonspontaneous) reaction:

        Cd(s) + 2Fe³⁺(aq)  ®  2Fe²⁺(aq) + Cd²⁺(aq) →

A. -0.37 V
B. + 0.37 V
C. -1.17 V
D. + 1.17 V
E. none of the answers provided is correct