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