Matter and it's properties

Question 1

Three different words to refer to water.

Answer 1

• water (liquid)
• ice (solid)
• steam (gas)

Question 2

What are the 4 states of matter?

Answer 2

1. Solid
2. Liquid
3. Gas
4. Plasma

Question 3

What is a solid?

Answer 3

A solid is a form of matter that has a definite shape and volume. The shape of a solid doesn’t depend on the shape of its container.

Question 4

Describe the arrangement, relative spacing, and relative motion of the particles in a solid.

Answer 4

The particles in a solid are packed tightly together, often in an orderly arrangement. As a result, solids are almost incompressible; that is, it is difficult to squeeze a solid into a smaller volume. In addition, solids expand only slightly when heated.

Question 5

What is a liquid?

Answer 5

A liquid is a form of matter that has an indefinite shape, flows, and yet has a fixed volume.

Question 6

Describe the arrangement, relative spacing, and relative motion of the particles in a liquid.

Answer 6

The particles in a liquid are in close contact with one another, but the arrangement of particles in a liquid is not rigid or orderly. Because the particles in a liquid are free to flow, a liquid takes the shape of the container in which it is placed.

Question 7

Do the volume of liquid change?

Answer 7

However, the volume of the liquid doesn’t change as its shape changes.

Question 8

Are liquids compressible?

Answer 8

Liquids are almost incompressible. However, they tend to expand slightly when heated.

Question 9

What is gas?

Answer 9

Gas is a form of matter that takes both the shape and volume of its container, just like a liquid. But, unlike a liquid, a gas can expand to fill any volume, which means that gas has an indefinite shape and indefinite volume.

Question 10

Describe the arrangement, relative spacing, and relative motion of the particles in a gas.

Answer 10

The particles in a gas are usually much farther apart than the particles in a liquid. Because of the space between particles, gases are easily compressed into a smaller volume.

Question 11

What’s the difference between a vapor and a gas?

Answer 11

The term gas is used for substances, like oxygen, that exist in the gaseous state at room temperature. While, vapor describes the gaseous state of a substance that is generally a liquid or solid at room temperature, as in water vapor.

Question 12

What is plasma?

Answer 12

Plasma is a hot ionized gas that has an equal number of positively charged ions (protons) and negatively charged electrons (electrons).It does not gave definite shape or volume.

Question 13

How is a plasma formed?

Answer 13

Plasma can be created by heating a gas or subjecting it to an electromagnetic field applied with a laser or microwave generator.

Question 14

What is the most abundant form of matter in the universe?

Answer 14

plasma

Question 15

What is the common form of plasma on earth?

Answer 15

Neon signs

Question 16

A substance is in a state in which it takes the shape of its container. What state or states could it be in?

Answer 16

The substance could be either a liquid or a gas, as each takes the shape of its container.

Question 17

What is the melting point of gallium metal?

Answer 17

30 degrees Celsius

Question 18

During this, some properties of a material change, but the composition of the material does not change.

Answer 18

Physical Change

Question 19

What are words used to describe physical changes?

Answer 19

1. boil
2. freeze
3. melt
4. condense
5. break
6. split
7. grind
8. cut
9. crush

Question 20

How can physical changes be classified?

Answer 20

Physical changes can be classified as reversible or irreversible.

Question 21

What are words used to describe a reversible type of physical change?

Answer 21

boil, freeze, melt, and condense

Question 22

What are words used to describe an irreversible type of physical change?

Answer 22

break, split, grind, cut, crush

Question 23

What happens if a sample of liquid gallium cools below its melting point?

Answer 23

If a sample of liquid gallium cools below its melting point, the liquid will become solid.

Question 24

What type of physical change involves a change from one state to another?

Answer 24

reversible

Question 25

Water boils and becomes water vapor. Is this a reversible or irreversible physical change?

Answer 25

It is a reversible physical change because it involves a change from one state to another.

Question 26

Properties used to describe matter can be classified as what?

Answer 26

Extensive or Intensive properties

Question 27

What is a mass?

Answer 27

The mass of an object is a measure of the amount of matter the object contains.

Question 28

What is matter?

Answer 28

Matter is anything that has mass and takes up space.

Question 29

What is volume?

Answer 29

The volume of an object is a measure of the space occupied by the object.

Question 30

What is an extensive property?

Answer 30

An extensive property is a property that depends on the amount of matter in a sample.

Question 31

What is an intensive property

Answer 31

An intensive property is a property that depends on the type of matter in a sample, not the amount of matter.

Question 32

What are the properties used to describe matter?

Answer 32

Physical property and Chemical property

Question 33

What is physical property?

Answer 33

A physical property is a quality or condition of a substance that can be observed or measured without changing the substance’s composition.

Question 34

What are examples of physical properties?

Answer 34

hardness, color, conductivity, malleability, melting point and boiling point

Question 35

When can you say when an object has undergone a physical change?

Answer 35

There are changes in size, shape, and state.

Question 36

Is color a physical change or a chemical change?

Answer 36

The color of a matter itself is a characteristic categorized as a physical property, however, the act or process of a matter changing from one color to another is no longer a physical change, but is considered a chemical change.

Question 37

What is the boiling point and the melting point of a colorless substance, called water?

Answer 37

Boiling point: 100 degrees C
Melting point: 0 degrees C

Question 38

What do you call a colorless substance that has a boiling point of 100 degrees C and a melting point or freezing point of 0 degrees C?

Answer 38

Water

Question 39

What are the boiling point and the melting point of ethanol?

Answer 39

Boiling point: 78 degrees C
Melting point: -117 degrees C

Question 40

Glass is often used to make windows, while copper is often used in electrical wires. What properties of glass make it a desirable material to use for windows?

Answer 40

Glass is transparent, so it can be seen through; hard, so it stays in place within window frames; and heat resistant, so it helps prevent the transfer of heat between outside and inside.

Question 41

You want to compile a list of properties of a substance, but you don’t have a way to measure mass or volume. What kinds of properties can you determine without knowing the amount of matter in the sample?

Answer 41

You can determine the sample’s intensive properties.

Question 42

What is a physical change?

Answer 42

A change in one or more physical properties of matter without change in chemical properties.

Question 43

Every sample of a given substance has identical intensive properties because every sample has the same composition. True or False?

Answer 43

True

Question 43

What is a chemical change?

Answer 43

Chemical changes lead to a change in the composition of the matter involved.