Chapter 2: Properties of Matter

Question 0

A substance that cannot be broken down into simpler substances.

Answer 0

Element

Question 1

Matter that always has exactly the same composition.

Answer 1

pure substance

Question 2

The smallest particle of an element. That still has the characteristics of that element.

Answer 2

Atom

Question 3

A combination of two or more elements joined in a fixed proportion.

Answer 3

Compound

Question 4

A mixture where the parts of the mixture are noticeably different from one another.

Answer 4

Heterogenous Mixture

Question 5

A mixture where the substances are so evenly distributed it is difficult to distinguish one substance in the mixture from another.

Answer 5

Homogenous Mixture

Question 6

A homogenous mixture where the particles are too small to settle out, filter out, or scatter light.

Answer 6

Solution

Question 7

A heterogenous mixture that settles out over time.

Answer 7

Suspension

Question 8

A mixture with some particles that are intermediate in size. You can see the parts, but they will not settle out over time, and cannot be separated into layer.

Answer 8

Colloid

Question 9

Any characteristic of a material that can be observed or measured without changing the composition of the substances in the material.

Answer 9

Physical Property

Question 10

Viscosity, Conductivity, Malleability, Hardness, Melting Point, Boiling Point, Density

Answer 10

Physical Properties

Question 11

A liquids tendency to resist flowing.

Answer 11

Viscosity

Question 12

A materials ability to allow heat or electricity to flow.

Answer 12

Conductivity

Question 13

The ability of a solid to be hammered without shattering.

Answer 13

Malleability

Question 14

A materials resistance to being scratched.

Answer 14

Hardness

Question 15

The temperature at which a substance changes from a solid to a liquid.

Answer 15

Melting Point (The melting point of water is 0 degrees Celsius)

Question 16

The temperature where a substance goes from a liquid to a gas.

Answer 16

Boiling Point (The boiling point of water is 100 degrees Celsius)

Question 17

The ratio of a substances mass to its volume.

Answer 17

Density (This will determine what will float)

Question 18

A process that separates materials based on the size of their particles.

Answer 18

Filtration

Question 19

A process that separates the substances in a mixture based on boiling points.

Answer 19

Distilation

Question 20

Can only be observed when the substances in a sample of matter are changing into different substances.

Answer 20

Chemical Property

Question 21

A materials ability to burn in the presence of oxygen.

Answer 21

Flammability

Question 22

How readily a substance will combine with other substances.

Answer 22

Reactivity

Question 23

What are three signs of a chemical change.

Answer 23

A change in color.
Production of a gas.
Formation of Precipitate.

Question 24

A solid that is formed in a liquid.

Answer 24

Preciptate

Question 25

A change in a substance that does not change the chemical composition of the substance.

Answer 25

Physical Change

Question 26

A change in a substance that changes the chemical composition of the substance.

Answer 26

Chemical Change.