Linked from
The 15 pages that link to Half-reaction, each with the reason it gives.
OxidationRelated: Separating oxidation into a half-reaction makes its electron loss explicit.
Electrode potentialRelated: Electrode potentials are assigned to individual half-reactions.
AnodeRelated: The anode’s chemistry is written as the oxidation half-reaction.
DisproportionationRelated: Separate half-reactions make the paired electron changes explicit.