Mixtures key definitions

Mixture

A substance made up of two or more pure substances.

Solution

A mixture of a solute dissolved in a solvent

Suspension

A cloudy liquid containing insoluble particles

Sediment

Substances that settles to the bottom of a mixture.

Colloid

Type of mixture that looks cloudy, because of clumps of insoluble particles.

Emulsion

Type of colloid, when two or more liquids are mixed together, with one suspended in the other with tiny droplets

Soluble

Can be dissolved in a liquid

Solute

Substances that dissolves in a liquid ( solvent)

Solvent

A liquid in which other substances dissolve

Dilute

Contains small number of solute particles in the volume of solution

Concentrated

Containing a large number of solute particles in the volume of particles

Saturated

Salutation in which no more solute can be dissolved

Magnetic separation

Proccess of using magnets to separate magnetic materials from non magnetic materials.

Decanting

technique used to separate sentiment from the liquid, by carefully pouring the liquid away

Sedimentation

Procces of a substance settling to the bottom

Flotation

Floating in a liquid or gas

Flocculant

Chemical added to a mixture to make suspended particles clump together

Filtering

Technique used to separate different sized particles in a mixture depending on the size of the holes in the filter used

Sieving

A separation technique based on the difference in particle size

Centrifuging

Technique used to separate light and heavy particles by rapidly spinning the mixture

Crystallisation

Separation technique used with evaporation to remove a dissolved solid from a liquid, after the liquid has been evaporated the solid remains as a crystal

Distillation

Technique uses evaporation and condensation to separate a solid from the solvent in which it has dissolved.

Solubility

How easily a substance dissolves in a solvent