Chemistry — Redox Reactions

\text{Oxidation: } \text{Fe} \rightarrow \text{Fe}^{2+} + 2e^-

\text{Reduction: } \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu}

E^\circ_{cell} = E^\circ_{red} - E^\circ_{ox}

\text{OIL RIG: oxidation is loss, reduction is gain}