Chapter 8, Problem 73E

Determine whether each redox reaction occurs spontaneously in the forward direction.

1. $\text{Ni}\left(\text{s}\right){\text{+Zn}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Ni}}^{\text{2+}}\left(\text{aq}\right)\text{+Zn}\left(\text{s}\right)$

$\text{Ni}\left(\text{s}\right){\text{+Pb}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Ni}}^{\text{2+}}\left(\text{aq}\right)\text{+Pb}\left(\text{s}\right)$

$\text{Al}\left(\text{s}\right){\text{+3Ag}}^{\text{+}}\left(\text{aq}\right)\to {\text{3Al}}^{\text{3+}}\left(\text{aq}\right)\text{+Ag}\left(\text{s}\right)$

$\text{Pb}\left(\text{s}\right){\text{+Mn}}^{\text{2+}}\left(\text{aq}\right)\to {\text{3Pb}}^{\text{2+}}\left(\text{aq}\right)\text{+Mn}\left(\text{s}\right)$