States Of Matter Flashcards
1
Q
Liquid —> Gas
A
Boiling/Evaporating —- Boiling point
2
Q
Liquid —> Solid
A
Freezing —- Freezing point
3
Q
Gas —> Liquid
A
Condensing —- Condensation point
4
Q
Solid —> Liquid
A
Melting —- Melting point
5
Q
Solid —> Gas
A
Subliming
6
Q
How to change solids into liquids?
A
Heat energy must be used, as heat provides the particles with enough energy to overcome the forces holding them together.
7
Q
How to change gases into liquids and then into solids?
A
By cooling, removing heat energy. This makes particles move closer together as they change.
8
Q
Aqueous ammonia gives off…
A
ammonia gas
9
Q
Hydrochloric acid gives off…
A
hydrogen chloride gas
10
Q
What is the ring in the cotton wool tube?
A
Ring of ammonium chloride
11
Q
Example of diffusion
A
bromine gas in air
