Separation Techniques

Question 1

Centrifugation

Answer 1

Mixture is spun at high speeds

Question 2

Chromatography

Answer 2

Mixture is applied to a solid support and separated into its components by a solvent

Question 3

Crystallization

Answer 3

The mixture is concentrated and cooled until the solid component slowly forms

Question 4

Distillation

Answer 4

Mixture is heated until a liquid component reaches its boiling point and is evaporated

leaving the other component behind

Eg. getting salt out of water

Question 5

Electrolysis

Answer 5

A process where an electric current is applied to a sample, decomposing the sample into its component elements

Question 6

Filtration

Answer 6

Mixture becomes trapped in a screen letting liquid pass through

Question 7

Floatation

Answer 7

Chemical is added to a mixture

Eg. Oil, detergent

Air is forced through the mixture from stirring and the desired component is skimmed off the top

Question 8

Settling

Answer 8

Components of a mixture separate into layers on their own