Mixtures and Separating

Question 1

What are insoluble substances?

Answer 1

Can only be separated from water by filtration.
-Doesn’t dissolve

Question 2

What are soluble substances?

Answer 2

-Does dissolve

Question 3

How to separate mixture of sand and salt?

Answer 3

-Add water
-salt dissolves as soluble
-filtered insoluble sand so salt water left
-evaporated salt
-leaving H20

Question 4

What is distillation?

Answer 4

The method of separating 2 or more liquids with different boiling points.

Question 5

What is evaporation?

Answer 5

A method of separating 2 or more liquids that are soluble.

Question 6

What changes of state occur in distillation?

Answer 6

-liquid-gas in the weird shaped beaker(evaporation)
-gas-liquid in the condenser (condensation)

Question 7

How can you separate colours in ink with chromatography?

Answer 7

Different pigments have different masses. The heavier the pigment the less far the colour can travel. The lighter the pigment the further it can travel.

Question 8

What is the change of state for melting?

Answer 8

Solid to liquid
ice to water

Question 9

What is the change of state for boiling?

Answer 9

Liquid to gas
water to steam

Question 10

What is the change of state for condensing?

Answer 10

Gas to liquid
steam to water

Question 11

What is the change of state for freezing?

Answer 11

Liquid to solid
water to ice