What is a pure substance in chemistry? Learn about pure and impure substances in this KS3 chemistry guide from BBC Bitesize.

Pure substances and mixtures The meaning of pure The word 'pure' is used in chemistry in a different way from its everyday meaning. For example, shops sell cartons labelled as 'pure' orange juice.

Pure and Mixed Substances: find the topic and its Definition, Characteristics and Example. Download or read complete content here.

A solution, on the other hand, may remain of constant composition when attempts are made to fractionate it by a single method, for example, by distillation under a given pressure, but generally ...