Vocab Chapter 2- Section 2.3

Question 1

Element

Answer 1

Substance that cannot be broken down into simpler substances

Question 2

Atom

Answer 2

The smallest particle of an element

Question 3

Compound

Answer 3

A group of combined substances that can me broken down

Question 4

Heterogeneous mixture

Answer 4

The parts of a mixture noticeably different from one another

Question 5

Homogeneous mixture

Answer 5

The substances are so evenly distributed that it is difficult to distinguish one substance from another

Question 6

Solution

Answer 6

When substances dissolve and form a homogenous mixture

Question 7

Suspension

Answer 7

A heterogeneous mixture that separates into layers over time

Question 8

Pure substance

Answer 8

Matter that always has the same composition

Question 9

Colloid

Answer 9

Contains intermediate sized particles in a solution

Question 10

Physical property

Answer 10

A characteristic that can be observed or measured without changing the compositions of the substances in the material

Question 11

Viscocity

Answer 11

The tendency of a liquid to keep from flowing

Question 12

Conductivity

Answer 12

How well heat flows in a material

Question 13

Malleability

Answer 13

The ability of a solid to be hammered without shattering

Question 14

Melting point

Answer 14

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

Question 15

Boiling point

Answer 15

The temperature at which a substance boils

Question 16

Filtration

Answer 16

Process that separates materials based on particle size

Question 17

Distillation

Answer 17

Process that separates substances based on their boiling points.

Question 18

Chemical property

Answer 18

Any ability to produce a change in the composition of matter.

Question 19

Flammability

Answer 19

How well something burns.

Question 20

Reactivity

Answer 20

How well substances combine

Question 21

Chemicals change

Answer 21

Occurs when a substance reacts and forms one or more new substances

Question 22

Precipitate

Answer 22

Any solid that forms and separates from a liquid.