When would you use diffusion?
To separate a liquid from a solid
To dissolve a substance
To separate gases
When would you use chromatography?
To separate and purify coloured compounds
To test a boiling point
To separate water from salts
When would you use filtration?
To separate a liquid from a liquid
To separate solids froms solutions
When would you use simple distillation?
To separate water from a dissolved salt
To separate more volatile liquids from less volatile liquids
When would fractional distillation be used?
To make salt crystals
To separate a less volatile liquid from a more volatile liquid
To eat
When are crystals formed?
When you heat water
When a solution of crystalline solid is partly evaporated and then allowed to cool
