Chapter 1

Question 1

Chemistry

Answer 1

Study of matter & changes that matter undergoes

Question 2

Matter

Answer 2

Anything that has mass & occupies space

Question 3

Macroscopic

Answer 3

Large enough to be seen by the unaided eye

Question 4

Submicroscopic

Answer 4

Too small to be seen, even w/ a microscope

Question 5

Law

Answer 5

Statement of a reliable relationship between phenomena

Question 6

Theory

Answer 6

Unifying principle that explains experimental observations

Question 7

1 nm = 10^__ m

Answer 7

1 nm = 10^-9m

Question 8

1 µm = 10^__ m

Answer 8

1 µm = 10^-6m

Question 9

1 mm = 10^__ m

Answer 9

1 µm = 10^-3 m

Question 10

1 cm = 10^__ m

Answer 10

1 cm = 10^-2 m

Question 11

1 km = 10^__ m

Answer 11

1 km = 10^3 m

Question 12

1 Mm= 10^__ m

Answer 12

1 Mm = 10^6 m

Question 13

K=

Answer 13

K= C + 273.15

Question 14

Accuracy

Answer 14

How close the experimental measurements are to the real value

Question 15

Precision

Answer 15

How close repeated measurements are to each other (averages)

Question 16

Substance

Answer 16

Form of matter with specific chemical composition & distinct observable properties

Question 17

Homogeneous mixture

Answer 17

Composition is uniform

Question 18

Heterogeneous mixture

Answer 18

Composition is not uniform

Question 19

Physical process

Answer 19

Process in which state of matter changes but identity of matter does not

Question 20

Physical properties

Answer 20

Observed & measured w/out den n changing changing identity of substance (color, melting point, boiling point)

Question 21

Chemical properties

Answer 21

Substance must be converted into other substance to study properties

Question 22

Extensive properties

Answer 22

Depends on amount of matter (mass & volume), additive

Question 23

Intensive properties

Answer 23

Do not depend on amount, not additive I will not change size or quantity (density, melting point, boiling point)