C1 State Changes

Question 1

Freezing

Answer 1

Liquid to Solid

Question 2

Evaporation

Answer 2

Liquid to Gas

Question 3

Condensation

Answer 3

Gas to Liquid

Question 4

Sublimation

Answer 4

Solid to Gas

Question 5

Melting

Answer 5

Solid to Liquid

Question 6

Solid

Answer 6

-fixed volume, shape
-high density
-atoms vibrate in fixed position
-organised in a regular pattern

Question 7

Liquid

Answer 7

-fixed volume, but adapts to the given volume
-less dense than solids
-particles move and slide past eachother

Question 8

gas

Answer 8

-doesn’t have a fixed volume
-low density
- can be compressed into much smaller volume.
-particles moves randomly to any direction
-moves in a fast speed (around 500m/s)

Question 9

describe an atom

Answer 9

the smallest part of an element

Question 10

describe a molecule

Answer 10

A group of atoms covalently joined together

Question 11

describe an ion

Answer 11

A charged particle

Question 12

describe diffusion

Answer 12

A process by which different substances mix as a result of the random motion of their particles

Question 12

describe diffusion

Answer 12

A process by which different substances mix as a result of the random motion of their particles

Question 12

describe diffusion

Answer 12

A process by which different substances mix as a result of the random motion of their particles