Chapter 3 Matter Properties & Changes

Question 1

What are the characteristics for physical change?

Answer 1

Density, color, order, taste, sight

Question 2

Physical property

Answer 2

Characteristics that can be observed or measured without changing the sample’s composition

Question 3

Extensive properties

Answer 3

Dependent upon the amount of substance present

Question 4

Intensive properties

Answer 4

Independent of the amount of substance present

Question 5

Chemical property

Answer 5

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

Question 6

What are three states of matter?

Answer 6

Solid, liquid, and gas

Question 7

States of matter

Answer 7

All matter that exists on earth can be classified as one of these physical forms

Question 8

Examples of solids?

Answer 8

Wood, iron, paper, and sugar

Question 9

How do you know it’s a solid?

Answer 9

If the shape is definite, a solid may not conform to the shape of the container in which it is placed

Question 10

What is a liquid?

Answer 10

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

Question 11

Examples of liquid?

Answer 11

Water, blood, Mercury

Question 12

What can liquid do?

Answer 12

Move past each other

Question 13

What is gas?

Answer 13

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

Question 14

examples of gases?

Answer 14

Neon, methane, air

Question 15

Physical change

Answer 15

A substance without changing its composition

Question 16

Chemical Change

Answer 16

Process that involves one or more substances changing into new substances

Question 17

Law of conservation of mass

Answer 17

Mass is neither created nor destroyed during a chemical reaction - it is conserved

Question 18

Equation for law of conservation of mass

Answer 18

Mass reactants = mass products

Question 19

Mixture

Answer 19

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

Question 20

Heterogeneous

Answer 20

That does not blend smoothly

Question 21

Homogenous

Answer 21

It always has a single phase

Question 22

Filtration

Answer 22

Technique the uses porous barrier to separate a solid or liquid

Question 23

Distillation

Answer 23

Separation technique that is based on differences in the boiling points of the su dances involved

Question 24

Crystallization

Answer 24

Separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance

Question 25

Chromatography

Answer 25

Separates the components of a mixture (mobile phase) to (stationary phase)

Question 26

Substance

Answer 26

Matter that has a uniform and unchanging composition