Matter And Mixture

Question 1

Matter

Answer 1

Anything that occupies space and mass.

Question 2

Mass

Answer 2

Mass is the amount of matter in an object

Question 3

Three States of matter

Answer 3

Solids
Liquids
Gases

Question 4

Properties of solids

Answer 4

Have a Definite shape
Have a Definite volume
Cannot be compressed
And cannot flow

Question 5

Properties of liquids

Answer 5

Have no definite shape
Have a definite volume
Cannot be compressed
Can flow

Question 6

Properties of gases

Answer 6

Have no definite shape
Have no definite volume
Can be compressed
Can flow

Question 7

Heat Energy

Answer 7

In order for a substance to change state( from solid to a liquid,or a liquid to a gas) it needs heat energy.

Question 8

Latent heat

Answer 8

As a substance changes state,it uses latent heat. There is no change to temperature, but the state of the material changes.

Question 9

Melting point

Answer 9

The melting point is wen both the solid and liquid state exist together( changing from a solid to a liquid )

Question 10

Boiling point

Answer 10

The boiling point of a liquid is when evaporation begins to happen throughout the liquid(changing from a liquid to a gas)

Question 11

Condensation

Answer 11

Condensation is the changing of a gas to a liquid

Question 12

Diffusion

Answer 12

Diffusion is the movement of particles from an area of high concentration to an area of low concentration e.g. spray perfume in one corner of the room,and it spreads to the rest of the room

Question 13

Fourth state of matter

Answer 13

Plasma is the fourth state of matter.like gas,but can conduct electricity

It is very similar to a gas, in fact plasma particles spread out and move around randomly, but unlike gas plasma has the ability

Question 14

Mixture

Answer 14

A mixture consists of two or more substances mingled together but not chemically combined e.g. sand and water

Question 15

There are four methods of separating mixtures

Answer 15

Filtration
Evaporation
Distillation
Chromatography

Question 16

Filtration

Answer 16

Used to separate small insoluble solids (do not dissolve in a liquid ) from a liquid by using filter paper and a funnel to trap the solids

Question 17

Evaporation

Answer 17

Used to separate soluble solids( dissolve in liquids ) from a solution by evaporating off the liquid to leave the solids E.g. salt water

Question 18

Physical change

Answer 18

No change in particles just the particle arrangement and energy,easy to reverse e.g.mixing water with salt

Question 19

Chemical change

Answer 19

A chemical reaction takes place and a new substance is formed,very difficult to reverse e.g. burning a match

Question 20

During a chemical reaction

Answer 20

The atoms rearrange to form a new substance ,Might be seen by colour change,temperature change,light being emitted or bubbles

Question 21

Law of conservation of mass

Answer 21

Matter can be changed from one form to another. During physical and chemical changes, there is no overall change in mass

Question 22

Distillation

Answer 22

Used to separate two liquids with different boiling points such as alcohol (boils at 78) and water boils at 100) also used to separate a soluble solid from a liquid e.g. seawater to give a pure sample of each

Question 23

Miscible

Answer 23

Liquids that mix together. Example alcohol and water

Question 24

Liebig condenser

Answer 24

Piece of equipment used in distillation in which cool water flows to condense steam to water

Question 25

Distillate

Answer 25

Clean water at the end of distillation

Question 26

Chromatogram

Answer 26

Chromatogram paper with separated ink

Question 27

Reactant

Answer 27

Chemicals that react together in the same chemical reaction

Question 28

Products

Answer 28

The substances formed after a chemical reaction