C1-mixtures Flashcards
1
Q
what is a pure substance?
A
a substance that consists of only of one element or one compound
2
Q
what is a mixture?
A
a mixture consists of two or more different substances, not chemically joined together
3
Q
what process do you use to separate insoluble solids?
A
filteration
4
Q
what process is used to produce solid crystals from a solution?
A
crystalisation
5
Q
what process is used to separate a solvent from a solution?
A
distillation
6
Q
what process is used to separate different liquids from a mixture of liquids?
A
fractional distillation
7
Q
what process is used to separate mixtures of soluble substances?
A
paper chromatography
8
Q
what are the two phases of chromatography?
A
mobile, stationary
