5.1.1.2 Mixtures Flashcards
(10 cards)
1
Q
What does a mixture consist of?
A
- two or more elements or compounds
- not chemically combined together
2
Q
What happens to the chemical properties in a mixture?
A
- unchanged
- different to a compound
3
Q
How can mixtures be separated?
A
- filtration
- crystallisation
- simple distillation
- fractional distillation
- chromatography
4
Q
What do the ways of separation not involve?
A
- chemical reactions as they are physical processes
- no new substances are made
5
Q
What is chromatography used for?
A
- to separate out mixtures
6
Q
What is filtration used for?
A
- to separate solids from liquids
7
Q
What is evaporation used for?
A
- to separate a soluble salt from a solution
- quick way of separating out salt
8
Q
What is crystallisation used for?
A
- to separate a soluble salt from a solution
- slower method of separating out salt
9
Q
What is simple distillation used for?
A
- to separate a liquid from a solution
10
Q
What is fractional distillation used for?
A
- to separate out a mixture of liquids
- can be used to separate crude oil into fractions
