Topic 3 Flashcards
1
Q
Solid - Liquid
A
Melting
2
Q
Liquid - Gas
A
Evaporation
3
Q
Gas - Liquid
A
Condensation
4
Q
Liquid - Solid
A
Freezing
5
Q
Solid - Gas
A
Sublimation
6
Q
Gas - Solid
A
Deposition
7
Q
Pure Compound
A
Chemically bonded compound only containing one type of compound
E.g. salt
8
Q
Mixture
A
Contain elements and/or compounds that are not chemically bonded together
E.g. Air
9
Q
Pure substances will melt at …
A
The same temperature (has precise melting point)
10
Q
Impure substances will melt ….
A
Over a range of temperatures
11
Q
Filtration
A
Used to separate insoluble solids from a solution
12
Q
Crystallation
A
Used to separate dissolved solids from a solution
13
Q
RF Value
A
Value for any substance is always the same
Always less than 1
Distance substance moved
————————————
Distance solvent moved
14
Q
Method for distillation
A
- Put rock salt into distilled water
- After dissolved, filter into beaker
- After filtered and left with just water, put in bowl and place above Bunsen burner
