States of matter

Question 1

When do changes in state occur?

Answer 1

when heat energy is added to or removed from particles in a solid, liquid or a gas

Question 2

What are the three main states of matter?

Answer 2

Solids, liquids and gases.

Question 3

Particles in gases:

Answer 3

Have weak bonds, are in constant motion, can be compressed, flow and can be diffused easily, have more energy than that in solids and liquids.

Question 4

Particles in liquids:

Answer 4

cannot be compresses, have semi-tight bonds, have no rigid structure, takes up the shape of its container.

Question 5

Particles in solids:

Answer 5

cannot be compressed, have strong bonds, cannot move freely or flow, vibrate in a fixed position.

Question 6

Does a gas have a fixed volume or shape?

Answer 6

No, because gases spread out, filling their containers.

Question 7

Does a liquid have a fixed volume or shape?

Answer 7

They have a fixed volume, but no fixed shape since they take the shape of their container.

Question 8

Does a solid have a fixed volume or shape?

Answer 8

Yes, they have both a fixed shape and volume since the particles cannot more or flow.

Question 9

Compare the densities of solids and liquids to gases.

Answer 9

Solids and liquids have similar densities, and both are far denser than the particles in a gas because, they are more compact.

Question 10

What pattern are the particles of solids arranged in?

Answer 10

A regular pattern.

Question 11

What pattern are the particles of liquid arranged in?

Answer 11

A random pattern.

Question 12

What pattern are the particles of gases arranged in?

Answer 12

A random pattern.

Question 13

How do the particles in a solid move?

Answer 13

Vibrate, in a fixed position.

Question 14

How do the particles in a liquid move?

Answer 14

freely, but remain close together.

Question 15

How do the particles in a gas move?

Answer 15

freely, far apart and at high speeds.

Question 16

What is the name of a change from solid -> liquid?

Answer 16

Melting

Question 17

What is the name of a change from gas -> liquid?

Answer 17

Condensation.

Question 18

What is the name of a change from solid -> Gas?

Answer 18

Sublimation

Question 19

What is the name of a change from liquid-> Gas?

Answer 19

Boiling, or evaporating at the surface of the liquid.

Question 20

What is the name of a change from liquid-> Solid?

Answer 20

Freezing.

Question 21

What is the name of a change from Gas -> Solid?

Answer 21

Deposition

Question 22

True or False: In a solid, particles are closely packed and vibrate in place.

Answer 22

True.

Question 23

Fill in the blank: The state of matter that has a definite volume but no definite shape is called a ______.

Answer 23

Liquid.

Question 24

Which state of matter has the highest energy particles?

Answer 24

Gas.

Question 25

What process involves a solid changing directly to a gas?

Answer 25

Sublimation.

Question 26

Multiple Choice: Which of the following is NOT a state of matter? A) Solid B) Liquid C) Plasma D) Ether

Answer 26

D) Ether.

Question 27

Short answer: Describe the arrangement of particles in a gas.

Answer 27

Particles are far apart and move freely.

Question 28

True or False: Liquids have a definite shape and a definite volume.

Answer 28

False.

Question 29

What is the process called when a liquid turns into a solid?

Answer 29

Freezing.

Question 30

Fill in the blank: The state of matter characterized by having neither a definite shape nor a definite volume is called ______.

Answer 30

Gas.