Chapter 1: States Of Matter

Question 1

Mass of solid, liquid, and gas (is it definite of indefinite?)

Answer 1

Definite, definite, definite

Question 2

Shape of solid, liquid, and gas (is it definite or indefinite?)

Answer 2

Definite, indefinite, indefinite

Question 3

Volume of solid, liquid, and gas( is it definite or indefinite?)

Answer 3

Definite, definite, indefinite

Question 3

The compressibility of solid, liquid, gas( is it compressible?)

Answer 3

Not compressible, Almost negligible, very compressible

Question 4

Fluidity of solid, liquid, and gas( can it flow?)

Answer 4

Can’t, can, can

Question 5

Rigidity of solid, liquid and gas

Answer 5

Highly rigid, less rigid , not rigid

Question 6

Rate of diffusion for solid, liquid, and gas (slow or fast?)

Answer 6

Slow, fast, very fast

Question 7

How closely packed are the particles for solid, liquid, and gas?

Answer 7

very closely packed, less closely packed, least closely packed

Question 8

How strong are the interparticle forces of solid, liquid, and gas?

Answer 8

Strongest, slightly weaker than solids, negligible

Question 9

What is matter?

Answer 9

It is anything that has space and occupies a mass

Question 10

What is mass?

Answer 10

It is the amount of matter in an object

Question 11

What is volume?

Answer 11

It is the space occupied by and object

Question 12

List all three states of matter from the most energy to the least energy:

Answer 12

Gas, liquid, solid

Question 13

Which state of matter has particles that are tightly packed and vibrate in place?

Answer 13

Solids

Question 14

Which state of matter has particles that are the most spread apart?

Answer 14

Gases

Question 15

Complete the sentence: Evaporation is the change from…

Answer 15

Liquid to gas

Question 16

Complete the sentence: Freezing is the change from…

Answer 16

Liquid to solid

Question 17

Complete the sentence: Melting is the change from…

Answer 17

Solid to liquid

Question 18

Complete the sentence: Boiling is the change from…

Answer 18

Liquid to gas

Question 19

Complete the sentence: Condensation is the change from…

Answer 19

Gas to liquid

Question 20

Complete the sentence: Sublimation is the change from…

Answer 20

Solid to gas

Question 21

Complete the sentence: Desublimation is the change from…

Answer 21

Gas to solid

Question 22

What can cause the motion of a gas’ particles to increase?(list two things)

Answer 22

An increase in temperature, and an increase in pressure.

Question 23

What is a pure substance?

Answer 23

It is a substance that is made up of only one type of particle and without any impurities. It has a specific melting point and boiling point.

Question 24

What are elements composed of?

Answer 24

It is composed of its own type of atoms

Question 25

What is a compound?

Answer 25

It is more than one type of atom chemically combined

Question 26

What is the kinetic particle theory used to describe and what are the main points of it?

Answer 26

The kinetic particle theory is used to describe the three different states and the changes between them in terms of the movement of particles. The main points are: -All matter is made up of many small particles. -Particles are in continuous motion, the higher the temperature, the higher the average kinetic energy. -The movement and the arrangement of particles are different in the three states. -The pressure of the gas is produced by the atoms or molecules when hitting the walls of the container. The more the particles collide, the greater the pressure.

Question 27

Are changes of states reversible?

Answer 27

Yes

Question 28

What is intermolecular space?

Answer 28

It is the space between the particles

Question 29

List all three states from least intermolecular space to most:

Answer 29

Solid, liquid, gas

Question 29

What is intermolecular force?

Answer 29

It is the attractive forces between the molecules

Question 30

List all three particles from weakest intermolecular force to strongest:

Answer 30

Gas, liquid, solid

Question 31

What is an exothermic reaction?

Answer 31

It is a reaction that releases energy from the system in the form of heat

Question 32

What is an endothermic reaction?

Answer 32

It is a reaction that the system absorbs energy from its surrounding in the form of heat

Question 33

What is a mixture?

Answer 33

It is when two or more substances are physically combined.

Question 34

What is a solution?

Answer 34

It is when the components of a mixture completely mix

Question 35

What is a solute?

Answer 35

The solid substance that dissolves in a liquid

Question 36

What is a solvent?

Answer 36

It is a liquid that dissolves the solute

Question 37

In salty water, which is the solute and which is the solvent?

Answer 37

Solute: Salt Solvent: Water

Question 38

What is suspension?

Answer 38

It is when the components of a mixture remain separate

Question 39

What does it mean when something is soluble?

Answer 39

It is when a solid is totally dissolved in a liquid

Question 40

What does it mean when something is miscible?

Answer 40

It is when two liquids totally dissolve

Question 41

When the temperature increases, do gases become more or less soluble?

Answer 41

They become less soluble

Question 42

When the pressure increases, do gases become more or less soluble?

Answer 42

They become more soluble

Question 43

What is diffusion?

Answer 43

It is the movement of particles from high to low concentration

Question 44

What two things can affect the rate of diffusion?

Answer 44

The molecular mass and the temperature

Question 45

Complete the sentence: The smaller the molecular mass...(talk about diffusion)

Answer 45

The higher the rate of diffusion

Question 46

Complete the sentence: The lower the temperature...(talk about diffusion)

Answer 46

The lower the rate of diffusion

Question 47

What are alloys?

Answer 47

It is when liquid metals are mixed together before solidifying