Chemistry: Chapter 3 Matter Properties And Changes

Front 1

Substance

Back 1

Matter that has a uniform and unchanging composition

Front 2

Physical Properties

Back 2

Characteristic that can be observed or measured without changing the samples composition

Front 3

Chemical Properties

Back 3

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

Front 4

Solid

Back 4

Has a definite shape and volume, does not take the shape of its container

Hint 4

They stay close together

Front 5

Liquid

Back 5

Matter that flows, has a constant volume, and takes the shape of its container

Hint 5

They flow/move past one another

Front 6

Gas

Back 6

Flows to conform to the shape of its container and fills the entire volume of the container

Hint 6

They move all over the place

Front 7

Physical Changes

Back 7

Altering a substance without changing its composition

Front 8

Chemical Change

Back 8

Process in which one or more substances change into new substances. The new substances DO have a different composition and properties than the starting substances.

Front 9

Reactants

Back 9

The starting substances of a chemical reaction

Front 10

Products

Back 10

The new substances of chemical reactions

Front 11

Indicators that a chemical change has taken place are

Back 11

•color change

• odor

• release of heat

Front 12

The Law of Conservation of mass

Back 12

Matter cannot be created nor destroyed

Hint 12

Mass (reactants)= mass(products)

Front 13

Mixture

Back 13

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

Front 14

Heterogeneous mixture

Back 14

One that does not blend smoothly throughout. The substances remain distinct with different composition throughout the mixture

Front 15

Homogeneous mixture

Back 15

Has the same composition throughout

Front 16

Filtration

Back 16

Separates solid from liquid

Front 17

Distillation

Back 17

Separates liquids based on different boiling points

Front 18

Crystallization

Back 18

Solid is formed from a solution of dissolved particles

Front 19

Chromatography

Back 19

Separates based on solubility

Front 20

Elements

Back 20

A pure substance that cannot be broken down to any sipper substance by physical or chemical means

Front 21

Compound

Back 21

Combination of two or more elements that are chemically combined

Hint 21

H2O, NaCl