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Worksheets7 Chem revision - mixtures
Total questions: 20
Worksheet time: 10mins
A solution that has water as its solvent
aqueous solution
saturated solution
insoluble solution
soluble solution
A solution that has as much substance as possible dissolved in it
aqueous solution
saturated solution
insoluble solution
soluble solution
A method of separation by spinning the mixture very fast
Centrifugation
chromatography
crystallisation
filtration
A method of separation by making it move over or through another substance that stays still
Centrifugation
chromatography
crystallisation
filtration
A method of separation by using a barrier with small holes
Centrifugation
chromatography
crystallisation
filtration
The formation of crystals as a dissolved substance solidifies
Centrifugation
chromatography
crystallisation
filtration
A method of separation by pouring a liquid off the top
decanting
desalinisation
distilling
dissolving
A method of separation using evaporation and condensing
decanting
desalinisation
distilling
dissolving
Breaking up into tiny particles that are smaller than the eye can see
decanting
desalinisation
distilling
dissolving
A method useful for separating some metals from non-metals
magnetic separation
gravity separation
filtration
evaporation
A method useful for separating heavier particles from a mixture
magnetic separation
gravity separation
filtration
evaporation
The change of a liquid to a gas
magnetic separation
gravity separation
filtration
evaporation
A substance that dissolves in another to make a solution
solute
solution
solvent
suspension
when a substance dissolves in another, forming a clear mixture
solute
solution
solvent
suspension
A substance that dissolves another substance
solute
solution
solvent
suspension
A mixture which is not dissolved, but separates if left to stand
solute
solution
solvent
suspension
How to make large crystals?
Heat a concentrated solution up quickly
Heat a concentrated solution up slowly
Cool a concentrated solution down quickly
Cool a concentrated solution down slowly
How much KNO3 is dissolved at 50° C?
80 g/100g
50 g/100g
60 g/100g
240 g/100g
How much CuSO4.5H2O is dissolved at 80° C?
100 g/100g
50 g/100g
60 g/100g
240 g/100g
Which substance (CuSO4.5H2O or KNO3) is more soluble at 70° C?
CuSO4.5H2O
KNO3
They are the same
Neither is soluble
