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==Key Stage 4Foundation==
===Meaning===
A '''redox reaction''' is a [[Chemical Reaction|chemical reaction]] in which [[Oxygen]] is lost from one [[compound]] ([[Reduction]]) and gained by another [[compound]] ([[Oxidation]]).
===About Redox Reactions===
: [[Displacement Reaction|Displacement reactions]] between [[metal]]s and [[Metal Oxide|metal oxides]] are a type of '''redox reaction'''.
: During a '''redox reaction''' a less [[reactivity|reactive]] [[metal]] in a [[Metal Oxide|metal oxide]] is [[Displacement Reaction|displaced]] by the more [[reactivity|reactive]] [[metal]] [[element]].
The [[Aluminium]] is [[Oxidation|oxidised]] and the [[Iron]] is [[Reduction|reduced]].
==Key Stage 4 Higher=====Meaning===A '''redox reaction''' is a [[Chemical Reaction|chemical reaction]] in which [[ion]]s of a less [[reactivity|reactive]] [[metal]] gain [[electron]]s ([[Reduction]]) and [[atom]]s of a more [[Reactivity|reactive]] [[metal]] lose [[electron]]s ([[Oxidation]]). ==Higher=About Redox Reactions===
: [[Displacement Reaction|Displacement reactions]] between [[metal]]s and [[metal]] [[compound]]s are a type of '''redox reaction'''.
: During '''redox reaction''' the less [[reactivity|reactive]] [[metal]] [[ion]] is [[reduction|reduced]] when it gains [[electron]]s and the more [[reactivity|reactive]] [[metal]] [[element]] is [[oxidation|oxidised]] when it loses [[electron]]s.