AQA Chemistry Mixtures


Mixtures contain at least two different elements or compunds. There aren't any chemical bonds between the different part of a mixure.

Air is a mixture of gases, mainly nitrogen, xygen, carbon dioxide and argon. The gases can all be separated out fairly easily.

Crude oil is a mixture of diferent length hydrocarbon molecules.

The different parts of a mixture can be separated out by methods filtration, crystallisation, simple distillation, fractional distillation and chromatography.


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