Separating Mixtures

Question 1

What are the 4 physical methods mixtures can be separated?

Answer 1

Filtration, evaporation, chromatography, distillation

Question 2

What is filtration?

Answer 2

Separating a solid from another solid.

Eg.. Grind the rock salt, dissolve into water, filter it using filter paper and a funnel, and evaporate it, it should leave the salt.

Question 3

What does insoluble and soluble mean?

Answer 3

Insoluble - you can’t dissolve it

Soluble - you can dissolve it

Question 4

What is evaporation?

Answer 4

Changing from liquid to a gas

Question 5

What is Chromatography?

Answer 5

It’s ideal for separating dyes and inks.

Question 6

What is distillation?

Answer 6

Separates liquids from solids, e.g. Salt water

Mixture is heated in a flask, the water evaporates off to form a gas.
Gas is cooled and turns back to liquid in a condenser.
The liquid water is collected in a beaker.
The salt is left behind in the flask.