states of matter

Question 1

solid to a liquid

Answer 1

melting

Question 2

Gas to a liquid

Answer 2

condensation

Question 3

particles in a solid

Answer 3

vibrate about a fixed position

Question 4

property of gas

Answer 4

compressible

Question 5

Why do solids have a fixed shape?

Answer 5

The particles are not free to move around

Question 6

property of a liquid

Answer 6

can not be squashed

Question 7

Liquid to a gas

Answer 7

evaporation

Question 8

What is room temperature?

Answer 8

20 degrees Celsius

Question 9

property of a solid

Answer 9

Does not flow

Question 10

melting point of water

Answer 10

0 degrees Celsius

Question 11

solid to gas

Answer 11

Sublimation

Question 12

What is a mixture?

Answer 12

Two or more substances mixed together but not chemically bonded

Question 13

What does chromatography do?

Answer 13

Separates mixtures

Question 14

What technique could be used to separate sand from water?

Answer 14

Filtration

Question 15

What is distillation?

Answer 15

Evaporation followed by condensation

Question 16

In filtration what is the bit left behind on the filter paper called?

Answer 16

Residue

Question 17

What technique would be used to separate two liquids?

Answer 17

Distillation

Question 18

What is the role of the condenser in fractional distillation?

Answer 18

To cool the vapours so they turn back to a liquid

Question 19

What is a substance that has been dissolved in a liquid called?

Answer 19

Solute

Question 20

How is the Rf value calculated on paper chromatography?

Answer 20

Distance moved by spot divided by distance moved by solvent