Ch. 3 Vocab

Question 0

Solid

Answer 0

Form of matter that has its own definite shape and volume

Question 1

States of Matter

Answer 1

All matter that exists naturally if earth

Question 2

Liquid

Answer 2

Form of matter that flows, has constant volume, and takes the shape of its container

Question 3

Gas

Answer 3

Form of matter that flows to conform to the shape of its container and fills the entire volume of its container

Question 4

Vapor

Answer 4

The gaseous state of a substance that is a solid or liquid at room temperature

Question 5

Physical Property

Answer 5

Characteristic of matter that can be observed or measured without changing the sample’s composition

Question 6

Extensive Properties

Answer 6

Properties that depend on the amount of substance present

Question 7

Intensive Properties

Answer 7

Properties that are independent of the amount of substance present

Question 8

Chemical Property

Answer 8

The ability of a substance to combine with or change into one or more other substances

Question 9

Physical Change

Answer 9

A change that alters a substance without changing its composition

Question 10

Phase Change

Answer 10

The transition of matter from one state to another

Question 11

Chemical Change

Answer 11

Process in which one or more substances changes into a new substance

Question 12

Law of Conservation of Mass

Answer 12

Law stating that mass is neither created or destroyed during a chemical reaction- it is conserved

Question 13

Mixture

Answer 13

A combination of two or more pure substances in which each pure substance retains its individual chemical properties

Question 14

Heterogeneous Mixture

Answer 14

A mixture that doesn’t blend smoothly and individual substances remain distinct

Question 15

Homogeneous Mixture

Answer 15

A mixture that has constant composition throughout

Question 16

Solution

Answer 16

Mixture that always has a single phase

Question 17

Filtration

Answer 17

A technique that uses a porous barrier to separate a solid from a liquid

Question 18

Distillation

Answer 18

A physical separation technique that is based on different boiling points

Question 19

Crystallization

Answer 19

A separation technique that results in the formation of pure solid particles

Question 20

Sublimation

Answer 20

The process during which a solid changes to a cape without melting

Question 21

Chromatography

Answer 21

Technique that separates the components of a mixture dissolved in a gas or liquid

Question 22

Element

Answer 22

A pure substance that cannot be separated into a smaller substance

Question 23

Periodic Table

Answer 23

An organization of the elements into a grid of rows and columns

Question 24

Compound

Answer 24

A chemical combination of two or more elements

Question 25

Law of Definite Proportions

Answer 25

Law stating that a compound is always composed of the same elements in the same proportion as mass

Question 26

Percent by Mass

Answer 26

The ratio of the mass of each element to the total mass of the compound

Question 27

Law of Multiple Proportions

Answer 27

Law stating that when different compounds are formed by a combination of the same elements, different masses of one element combine with the same fixed mass of the other element in a ratio