Chapter 1

Question 1

What is matter?

Answer 1

anything that takes up space

Question 2

What are Pure substances?

Answer 2

substances made up of one particle

Question 3

Element

Answer 3

made up of one atom

Question 4

Compound

Answer 4

made up of 2 or more atoms

Question 5

mixture

Answer 5

2 or more pure substances

Question 6

Homogeneous

Answer 6

uniform throughout, can’t see different components

Question 7

Heterogeneous

Answer 7

able to see different components

Question 8

How many grams in 1 kg?

Answer 8

1000 g

Question 9

How many meters in 1 km?

Answer 9

1000 m

Question 10

How many grams in 1 mg?

Answer 10

0.001 g

Question 11

How many meters in 1 mm?

Answer 11

0.001 m

Question 12

Atoms

Answer 12

smallest unit of an element

Question 13

Molecules

Answer 13

2 or more atoms together

Question 14

Physical properties

Answer 14

Observe without changing the identity of the substance

Question 15

Chemical properties

Answer 15

the substance changes

Question 16

Intensive properties

Answer 16

depends on the type of matter, not the amount

Question 17

extensive properties

Answer 17

depends on the amount of matter in a sample

Question 18

Solids

Answer 18

fixed shape and volume (molecules are packed together)

Question 19

Liquids

Answer 19

No fixed shape, fixed volume

Question 20

Gas

Answer 20

no fixed shape or volume (molecules are far apart)

Question 21

Solid->Gas

Answer 21

Sublimation

Question 22

Gas->Solid

Answer 22

Deposition

Question 23

Solid->Liquid

Answer 23

Melting

Question 24

Liquid->Solid

Answer 24

Freezing

Question 25

Liquid->Gas

Answer 25

Vaporization

Question 26

Gas->Liquid

Answer 26

Condensation

Question 27

Precision

Answer 27

The closeness of 2 or more measurements to each other

Question 28

Accuracy

Answer 28

How close a measurement is to the correct value