Elements And Particles In Solutions

Question 1

Molecule

Answer 1

Formed when 2 or more atoms join (bond) together chemically
Is an element e.g. Hydrogen

Question 2

Compound

Answer 2

When a molecule is made up of 2 or more different atoms e.g. water
Is an non-elements

Question 3

Alloy

Answer 3

Mixture of 2 elements

Question 4

Mixture

Answer 4

Contains 2 or more different substances mixed together but not chemically combined

Question 5

Element

Answer 5

A substance that’s made up of only one type of atom.
In some elements, the atoms are separate to each other.

Question 6

Chromotagraphy

Answer 6

A technique for the separation of mixtures by passing it in solution or suspension through a medium in which the components move at different rates.

Question 7

Solution

Answer 7

A mixture of a solvent and solute e.g. sugar + water

Question 8

Solvent

Answer 8

A liquid in which a solute dissolves

Question 9

Solute

Answer 9

A substance that dissolves

Question 10

Soluble

Answer 10

Solids that dissolve in a liquid e.g. salt + water = saltwater

Question 11

Concentrated

Answer 11

Very little solvent
Lots of solute

Question 12

Distillation

Answer 12

The action of purifying a liquid by a process of heating and cooling

Question 13

Heating

Answer 13

Molecules gain more energy, bonds break down more quickly

Question 14

Evaporation

Answer 14

Separation method to separate components of a mixture with a dissolved solid in a liquid leading to only the solid being left behind.

Question 15

Filtration

Answer 15

Separate the components of a mixture containing an undissolved solid in a liquid by using a funnel lined with filter paper to retain the solids while letting the liquid through.