1.7 Oxidation, Reduction and Redox equations

Half equation

A full redox equation can be split into two half-equations, one involving oxidation and the other involving reduction. This concept is useful for balancing complex redox reactions.

Oxidation

Process involving the loss of electrons. Results in an increase in oxidation number.

Oxidation state

The charge of an ion or a theoretical charge of an atom in a covalently bonded compound assuming the bond becomes ionic.

Oxidising agent

Electron acceptors. The elements/compounds which accept electrons causing itself to be reduced.

Redox reaction

A reaction in which both reduction and oxidation are occurring simultaneously.

Reducing agent

Electron donors. The elements/compounds which donate electrons causing itself to be oxidised.

Reduction

Process involving the gain of electrons. Results in a decrease in oxidisation number.