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Oxidation Definition

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Oxidation used to mean oxygen was added to a compound.

Oxidation used to mean oxygen was added to a compound.

Todd Helmenstine

Oxidation Definition: Oxidation is the loss of electrons during a reaction by a molecule, atom or ion.

Oxidation occurs when the oxidation state of a molecule, atom or ion is increased.

An older meaning of oxidation was when oxygen was added to a compound. Example: Iron combines with oxygen to form iron oxide or rust. The iron is said to have oxidized into rust.

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