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| style="height:20px; width:200px; text-align:center;" |When there are more than 1 [[solute]]s in a [[solution]] [[chromatography]] can '''separate''' them.
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==Key Stage 4==
===Meaning===
To '''separate a mixture''' is to remove one or more [[chemical]]s from a [[mixture]] of [[chemical]]s.
===About Separating Mixtures===
: Techniques to '''separate mixtures''' are usually used to obtain [[pure]] samples of a [[chemical]].
Different '''separation''' techniques are needed for different types of [[mixture]]:
*[[Filtration]] - To remove an [[insoluble]] [[solid]] from [[mixture]] with a [[liquid]].
*[[Evaporation of Solutions|Evaporation]] (*[[Evaporation of Solutions|Crystallisation]]) - Collecting a [[solute]] from a [[solution]] while losing the [[solvent]].
*[[Distillation]] - Collecting both the [[solute]] and [[solvent]] from a [[solution]].
*[[Chromatography]] - '''Separating''' two or more [[solute]]s in [[solution]].