Separating mixtures

Question 1

Element

Answer 1

Substances made from only one type of atom

Question 2

Compound

Answer 2

Substances made from two or more types of atoms bonded together

Question 3

Mixture

Answer 3

Groups of atoms, elements and compounds that are mixed but not bonded

Question 4

How to separate mixtures

Answer 4

They can be separated from each other without a chemical reaction. The 5 methods used are crystallisation, chromatography, filtration, simple and fractional distillation

Question 5

Filtration

Answer 5

Used for separating an insoluble solid from a liquid e.g. sand from water

Question 6

Crystallisation

Answer 6

Used so separate soluble solids from a liquid e.g. salt from water

Question 7

Simple distillation

Answer 7

Used to separate a liquid from a solution

Question 8

Solute

Answer 8

A solid that can dissolve in a solvent e.g. salt

Question 9

Solvent

Answer 9

A substance that can dissolve a solute e.g. water

Question 10

Solution

Answer 10

The mixture formed when a solvent dissolves a solute e.g. salt in water