S1 Chemistry

Question 1

What is sublimation

Answer 1

When a solid turns into a gas

Question 2

What is deposition

Answer 2

When a gas turns into a solid

Question 3

What is it called when a solid turns into a liquid

Answer 3

Melting

Question 4

What is it called when a liquid turns into a gas

Answer 4

Evaporating or boiling

Question 5

What is it called when a gas turns into a liquid

Answer 5

Condensing

Question 6

What is it called when a liquid turns into a solid

Answer 6

Freezing

Question 7

Name four properties of a solid

Answer 7

Fixed shape, fixed volume, cannot flow and particles are close together and have a regular pattern

Question 8

Name four properties of a liquid

Answer 8

Take the shape of the container, have a fixed volume, can flow and The particles are close together in a random arrangement and can move around each other

Question 9

Name four properties of a gas

Answer 9

Take the shape of the container, have no fixed volume, can flow and have a random arrangement and are far apart

Question 10

What are the three states of matter

Answer 10

Solid (s), liquid (l), gas (g)

Question 11

What is everything made up of

Answer 11

Matter

Question 12

Which state of matter can be compressed

Answer 12

Gas

Question 13

How does a solid expand

Answer 13

Energy is gained and the particles vibrate more creating spaces between them

Question 14

Do solids have varying densities

Answer 14

Yes

Question 15

Can liquids expand

Answer 15

Yes

Question 16

What is the formula for calculating density

Answer 16

Density = mass/volume

Question 17

What is the unit of density

Answer 17

Gcm-3

Question 18

What is diffusion

Answer 18

When particles move from a region of high concentration to low concentration

Question 19

When does diffusion occur

Answer 19

Liquids and gases

Question 20

Does diffusion happen more quickly at warm temperatures

Answer 20

Yes

Question 21

Does increasing the tempi true increase the air pressure

Answer 21

Yes