Separating Mixtures

Question 1

What did mixtures consist of

Answer 1

Two or more elements not chemically combined

Question 2

What can the components of a mixture retain

Answer 2

There own properties e.g. in the mixture of iron and sulfur the iron is still magnetic and the sulfur is yellow

Question 3

What can mixtures be separated by

Answer 3

Physical processes,these processes do not involve chemical reactions so no new substances are made

Question 4

What is filtratikn

Answer 4

Filtration is used to separate soluble solids from insoluble solids e.g. a mixture of a salt which is soluble and sand which is insoluble can be separated by dissolving the salt in water and obtaining the sand

Question 5

What is crystaloisation

Answer 5

Crystaloisation is used to obtain a soluble solid from a solutions.e. salt crystals can be obtained from salty water by heating the water untill the water evaporates and crystals are left

Question 6

What is simple distillation used to do

Answer 6

Obtain a solvent from a solution

Question 7

What is fractional distillation used to do

Answer 7

Separate mixtures that have different boiling points

Question 8

What is chromatography used to do

Answer 8

Seperate different soluble,coloured components of a mixture,e.g.the different colours added to a fizzy drink can be separated by chrimatography