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: '''Oxidation''' takes place in [[Displacement Reaction|displacement reactions]].
In the following '''redox reaction''':
: [[Magnesium]] + [[Copper (II ) Chloride]] → [[Magnesium Chloride]] + [[Copper]]
: [[Oxidation]] of [[Magnesium]]: <chem>Mg - 2e^- -> Mg^2+</chem>
The [[Magnesium]] is [[Reduction|reduced]] because it loses [[electron]]s.