Chapter 1

Question 0

Substance

Answer 0

A form of matter that has a constant composition and distinct properties

Question 1

Matter

Answer 1

Anything that occupies space and has mass

Question 2

Mixture

Answer 2

Combination of two or more substances in which the substances retain their distinct identities

Question 3

Homogeneous mixture

Answer 3

Composition is the same throughout

Question 4

Heterogenous mixture

Answer 4

Composition is not uniform

Question 5

Element

Answer 5

Cannot be separated into simpler substances by chemical means

Question 6

Compound

Answer 6

Substance composed of atoms of two or more elements chemically united in fixed portions

Question 7

S

Answer 7

Pure solid

Question 8

l

Answer 8

Pure liquid

Question 9

g

Answer 9

Pure gas

Question 10

aq

Answer 10

Aqueous mixture

Question 11

Physical property

Answer 11

Can be measured and observed without changing the composition or identity of a substance

Question 12

Chemical property

Answer 12

To observe we must carry out a chemical change

Question 13

Extensive property

Answer 13

Depends on how much matter is being considered

Question 14

Mass

Answer 14

The quantity of matter in a given sample of the substance

Question 15

Volume

Answer 15

Length cubed

Question 16

Intensive property

Answer 16

Does not depend on how much matter is being considered

Question 17

Density

Answer 17

The mass of an object divided by its volume

Question 18

Macroscopic properties

Answer 18

Can be determined directly

Question 19

Microscopic properties

Answer 19

On the atomic or molecular scale must be determined by an indirect method

Question 20

SI

Answer 20

International system of units

Question 21

Length

Answer 21

Meter

m

Question 22

Mass

Answer 22

Kilogram

kg

Question 23

Time

Answer 23

Second

s

Question 24

Electrical current

Answer 24

Ampere | A

Question 25

Temperature

Answer 25

Kelvin | K

Question 26

Amount of substance

Answer 26

Mole | mol

Question 27

Luminous intensity

Answer 27

Candela | cd

Question 28

Tera- | T

Answer 28

10^12

Question 29

Giga- | G

Answer 29

10^9

Question 30

mega- | M

Answer 30

10^6

Question 31

kilo- | k

Answer 31

10^3

Question 32

deci- | d

Answer 32

10^-1

Question 33

Centi- | c

Answer 33

10^-2

Question 34

milli- | m

Answer 34

10^-3

Question 35

Micro- | Weird u

Answer 35

10^-6

Question 36

nano- | n

Answer 36

10^-9

Question 37

pico- | p

Answer 37

10^-12

Question 38

Weight

Answer 38

The force that gravity exerts on an object

Question 39

Liter

Answer 39

Volume occupied by one cubic decimeter

Question 40

Significant figures

Answer 40

The meaningful digits in a measured or calculated quantity

Question 41

Accuracy

Answer 41

How close a measurement is to the true value of the quantity that was measured

Question 42

Precision

Answer 42

How closely two or more measurements of the same quantity agree with one another