Form 1:
Introduction to Chemistry

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Separation of mixture

A mixture is a combination of two or more substances that can be separated by physical means. Simple methods of separating mixtures at basic chemistry level include:

i) Sorting/picking-this involves physically picking one pure substance from a mixture with another/other. e. g. sorting maize from maize beans mixture.

ii) Decantation-this involves pouring out a liquid from a solid that has settled /sinking solid in it. e. g. Decanting water from sand.

iii)Filtration-this involves sieving /passing particles of a mixture through a filter containing small holes that allow smaller particle to pass through but do not allow bigger particle to pass through.

iv) Skimming-this involve scooping floating particles. E.g. cream from milk

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