Simple distillation, To separate a solid from a liquid, Evaporation, Liquid turns into a vapour (gas), Condenser, Uses cold water to help the vapour condense back into liquid, Drinking water, Can be made from seawater using simple distilation, but it uses lots of energy, Paper chromatography, Is used to separate different substances in a mixture, Water or ethanol, Are solvents that can be used in chromatography, Chromatogram, is the pattern of spots left on the paper after chromatography, Rf value in chromatography, is the distance travelled by the substance divided by the distance travelled by the solvent, A single spot, will be produced if a pure substance is used in chromatography, Heating, a salt solution up will speed up evaporation because it makes the water particles move faster, Crystallisation, The process of forming solid crystals from a solution, Salt crystals, will be produced if you leave a salt solution on a sunny window ledge as the sun evaporates the water, Fractional distillation, is used to separate a mixture of liquids with different boiling points, Fractionating column, Has cold water surrounding it to cool the vapour of the liquid with the highest boiling point back to a liquid.
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Separating mixtures
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Anggodbert
KS4
Chemistry
Chemical analysis
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