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==Key Stage 3==
===Meaning===
[[File:Electrolysis.png|right|300px|thumb|A [[diagram]] showing an experimental setup to [[Decompose (Chemistry)|decompose]] [[Copper Chloride]].]]
[[Electrolysis]] is a process where [[compound]]s are [[Decompose (Chemistry)|decomposed]] by an [[Electrical Current|electrical current]].
===About Electrolysis===
: [[Electrolysis]] can be used to [[Extraction of Metals|extract metals]] from [[mineral]]s when the [[metal]] is more [[Reactivity Series|reactive]] than [[Carbon]].
==Key Stage 4==
===Meaning===