Unit 2

Question 1

Has volume and mass

Answer 1

Matter

Question 2

Has a definite and constant composition

Answer 2

Pure Substance

Question 3

Is composed of a single kind of atom

Answer 3

Element

Question 4

Is composed of two or more elements in a specific ratio

Answer 4

Compound

Question 5

Are physical combinations of pure substances that have no definite or constant composition

Answer 5

Mixture

Question 6

Solution, is relatively uniform in composition; every portion of the mixture is like every other portion

Answer 6

Homogeneous

Question 7

Composition varies from position to position within the sample

Answer 7

Heterogeneous

Question 8

A mixture of metals

Answer 8

Alloy

Question 9

The study of matter and the changes it undergoes

Answer 9

Chemistry

Question 10

The amount of space as object takes up

Answer 10

Volume

Question 11

The amount of matter in an object

Answer 11

Mass

Question 12

Produces a change in properties

Answer 12

Chemical Reaction

Question 13

Mass is neither created nor destroyed, it is only rearranged or changed

Answer 13

Law of Conversation of Mass(Matter)

Question 14

Gives off heat energy

Answer 14

Exothermic

Question 15

Uses heat energy

Answer 15

Endothermic

Question 16

A substance dissolved in a solution

Answer 16

Solute

Question 17

A substance that dissolves another substance

Answer 17

Solvent

Question 18

A uniform mixture that may contain s, l, g (homogenous)

Answer 18

Solution

Question 19

Material remaining after distillation or evaporation

Answer 19

Residue

Question 20

Material, usually liquid that has passed through a filter

Answer 20

Filtrate

Question 21

Formation of a solid in a solution

Answer 21

Precipitate