Give the cell reaction and symbolic representation of the galvanic cell obtained by $E^o_{Ni^{2+}|Ni} = -0.23 \ V$ and $E^o_{Ag^{+}|Ag} = 0.80 \ V$.

(N/A) $1$. Identify the anode and cathode based on standard reduction potentials: Since $E^o_{Ag^{+}|Ag} (0.80 \ V) > E^o_{Ni^{2+}|Ni} (-0.23 \ V)$,$Ag$ acts as the cathode and $Ni$ acts as the anode.
$2$. Symbolic representation: The cell is represented as $Ni(s) | Ni^{2+}(aq) || Ag^{+}(aq) | Ag(s)$.
$3$. Cell reactions:
At anode (oxidation): $Ni(s) \rightarrow Ni^{2+}(aq) + 2e^-$
At cathode (reduction): $2Ag^{+}(aq) + 2e^- \rightarrow 2Ag(s)$
Overall cell reaction: $Ni(s) + 2Ag^{+}(aq) \rightarrow Ni^{2+}(aq) + 2Ag(s)$.