Chapter 1

Question 1

The closeness of a measurement to the true or accepted value

Answer 1

Accuracy

Question 2

A measure of length that is equal to 1E-10m.

Answer 2

Angstrom (Å)

Question 3

A mass exactly equal to 1/12 the mass of one carbon-12 atom.

Answer 3

Atomic Mass Unit (amu)

Question 4

Temperature scale originally based on the freezing point as 0 and boiling point as 100 for water.

Answer 4

Celsius

Question 5

Any property of a substance that cannot be studied without converting the substance into some other substance.

Answer 5

Chemical Property

Question 6

The study of matter and the changes it undergoes.

Answer 6

Chemistry

Question 7

The ratio of mass to volume.

Answer 7

Density

Question 8

The use of conversion factors in problem solving.

Answer 8

Dimensional Analysis

Question 9

A property that depends on the amount of matter involved.

Answer 9

Extensive Property

Question 10

A mixture in which the composition varies.

Answer 10

Heterogeneous Mixture

Question 11

A mixture in which the composition is uniform. Aka solution.

Answer 11

Homogeneous Mixture

Question 12

A tentative explanation for a set of observations.

Answer 12

Hypothesis

Question 13

A property that does not depend on the amount of matter involved.

Answer 13

Intensive Property

Question 14

The SI base unit of temperature.

Answer 14

Kelvin

Question 15

A concise verbal or mathematical statement of a reliable relationship between phenomena.

Answer 15

Law

Question 16

A measure of the amount of matter in an object or sample.

Answer 16

Mass

Question 17

Anything that occupies space and has mass.

Answer 17

Matter

Question 18

A combination of two or more substances in which the substances retain their distinct identities.

Answer 18

Mixture

Question 19

A property that can be observed and measured without changing the identity of a substance.

Answer 19

Physical Property

Question 20

The closeness of agreement of two or more measurements of the same quantity.

Answer 20

Precision

Question 21

A property of a system that can be determined by general observation.

Answer 21

Qualitative Property

Question 22

A property of a system that can be measured and expressed with numbers.

Answer 22

Quantitative Property

Question 23

A systematic approach to experimentation.

Answer 23

Scientific Method

Question 24

Meaningful digits in a measured or calculated value.

Answer 24

Significant Figures

Question 25

Matter with a definite (constant) composition and distinct properties.

Answer 25

Substance

Question 26

A unifying principle that explains a body of experimental observations and the laws that are based on them.

Answer 26

Theory

Question 27

10^12 (trillion)

Answer 27

Tera- T

Question 28

10^9 (billion)

Answer 28

Giga- G

Question 29

10^6 (million)

Answer 29

Mega- M

Question 30

10^3 (thousand)

Answer 30

Kilo- k

Question 31

10^-1 (tenth)

Answer 31

Deci- d

Question 32

10^-2 (hundredth)

Answer 32

Centi- c

Question 33

10^-3 (thousandth)

Answer 33

Mili- m

Question 34

10^-6 (millionth)

Answer 34

Micro- μ

Question 35

10^-9 (billionth)

Answer 35

Nano- n

Question 36

10^-12 (trillionth)

Answer 36

Pico- p