Methods of seperation - Types of mixtures

5 important questions on Methods of seperation - Types of mixtures

How do you know when it is a solution?

A solution is a clear mixture of a substance in a liquid.
In a solution the solute is so finely divided that the liquid is clear and transparent.

What is a suspension and its caracteristic?

A suspension is a turbid mixture of a solid in a liquid. You cannot see through a suspension as the particles are too large to leave through any light.

The particles are often so large that they will precipitate .

It is never colourless, but always coloured or white.

What is a emulsion?

That is a turbid mixture of two liquids
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What is a double layer system?

An emulsion will quickly demix again without an emusifier. Because of the difference in density, two layers will form. One above the other

Give examples of mixtures that are not transparent?

Smoke --> a mixture of a solid and a gas
Foam --> a mixture of a gas and a liquid
Mist --> a mixture of liquid and a gas

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