Chemistry Separating Mixtures

Question 1

Compound

Answer 1

2 or more elements that are chemically joined together, such as water.

Question 2

Molecule

Answer 2

Two or more atoms held together by strong chemicals bonds.

Question 3

Pure

Answer 3

Containing only 1 type of element or compound.

Question 4

Element

Answer 4

Substance made up of only one type of atom.

Question 5

Symbol / Chemical Symbol

Answer 5

Abbreviation used to represent an element. (Cu is Copper)

Question 6

Solvent

Answer 6

Liquid in which something dissolves.

Question 7

Solution

Answer 7

Mixture formed when a solid dissolves in a liquid.

Question 8

Soluble

Answer 8

Able to dissolve (usually in water)

Question 9

Solute

Answer 9

A solid that dissolves.

Question 10

Concentration

Answer 10

Amount of something per unit volume. For example, sugar and water.

Question 11

Dissolve

Answer 11

When a solid mixes with a liquid so that it can no longer be seen.

Question 12

Particles

Answer 12

Very small part of a material such as an atom or molecule.

Question 13

Mixture

Answer 13

2 or more element or compounds mixed together but not chemically join.

Question 14

Saturated

Answer 14

When no more solute can be dissolved. (When there is so much solute the solvent can’t take anymore)

Question 15

Insoluble

Answer 15

Unable to dissolve.

Question 16

Insoluble

Answer 16

Unable to dissolve.

Question 17

Filter

Answer 17

Material with microscopic holes used to remove insoluble solids from a liquid.

Question 18

Filtration

Answer 18

Separation of a solid from a liquid using a filter.

Question 19

Immiscible

Answer 19

Liquids that do not mix but form separate layers. (Oil and Water)

Question 20

Solubility

Answer 20

Mass of solute that dissolves in a solvent at a particular temperature.

Question 21

Crystillisation

Answer 21

When a solvent evaporates to leave crystals of solid.

Question 22

Crystal

Answer 22

Solid having a regular structure.

Question 23

Salt

Answer 23

Salt is a type of chemical compounds - Our table salt

is sodium chloride.

Question 24

Evaporate

Answer 24

Turn from a liquid to a gas such as when water evaporates to become water vapour.

Question 25

Sodium Chloride

Answer 25

Salt

Question 26

Rock Salt

Answer 26

Impure salt that is mined.

Question 27

Brine

Answer 27

Salty water.

Question 28

Vapour

Answer 28

Liquid that has evaporated.

Question 29

Condense

Answer 29

The point at which a gas turns into a liquid. E.g. As in water vapour condensing into liquid water.

Question 30

Distillation

Answer 30

Process for separating liquids by evaporating them, then condensing the vapours.

Question 31

Liebig Condensor

Answer 31

Apparatus used for distillation.

Question 32

Purify

Answer 32

Making pure or nearer to pure.

Question 33

Dye

Answer 33

Colouring made with different colours that separates into different colours when using chromatography.

Question 34

Chromatography

Answer 34

Process used to separate soluble substances.

Question 35

Hazard

Answer 35

Something that can cause harm.

Question 36

Volatile

Answer 36

Evaporates quickly.