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Ionic Equations

Ionic equations show the ions that react together and not the spectator ions.Any ions that appear identically on both sides of the equation are called spectator ions.
Ionic half-equations are written for reactions that involve oxidation and reduction and usually shows what happens to only one reactant.For exampleCl₂ + 2e^- → 2Cl^-

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Specification: Edexcel Chemistry (8CH0), AS-level, Topic 5: Formulae, Equations and Amounts of Substance. Topic: Amount of Substance and Calculations.

Key terms in this lesson

half-equation: An equation showing only the electrons lost or gained by one species in a redox reaction.

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