Source: wikibot/half-reaction
= Half-reaction
{wiki=Half-reaction}
A half-reaction is a way of representing either the oxidation or reduction part of a redox (reduction-oxidation) reaction. In a redox reaction, one species is oxidized (loses electrons) and another is reduced (gains electrons). Half-reactions help to clearly illustrate these processes by separating the two components. Each half-reaction shows the transfer of electrons and can be balanced for mass and charge.