Chapter 1

Question 1

Accuracy

Answer 1

How closely a measurement aligns with a correct value

Question 2

Atom

Answer 2

smallest particle of an element that can enter into a chemical combination

Question 3

Celsius (C)

Answer 3

Freezes @ 0C
Boils @ 100C

Question 4

Chemical Change

Answer 4

Change producing a different kind of matter from the original kind of matter

Question 5

Chemical Property

Answer 5

Behavior that is related to the change of one kind of matter into another kind of matter

Question 6

Chemistry

Answer 6

The study of the composition, properties, and interactions of matter

Question 7

Cubic centimeter (cm3 orcc)

Answer 7

Volume of a cube with an edge length of exactly 1 cm

Question 8

Compound

Answer 8

Pure substance that can be decomposed into two or more elements

Question 9

Density

Answer 9

Ratio of mass to volume for a substance or object
(D= m/v)

Question 10

Dimensional Analysis / Factor-Label Method

Answer 10

Versatile mathematical approach that can be applied to computations ranging from simple unit conversions to more complex, multi-step calculations involving several different quantities

Question 11

Element

Answer 11

Substance that is composed of a single type of atom & cannot be decomposed by a chemical change

Question 12

Exact Number

Answer 12

Number derived by counting or by definition

Question 13

Extensive Property

Answer 13

Property of a substance that depends on the amount of the substance

Question 14

Fahrenheit

Answer 14

Freezes @ 32 F
Boils @ 212 F

Question 15

Gas

Answer 15

State in which matter has neither definite volume nor shape

Question 16

Heterogeneous Mixture

Answer 16

Combination of substances with a composition that varies from point to point
Ex - Italian salad dressing

Question 17

Homogeneous Mixture

Answer 17

Combination of substances with a composition that is uniform throughout
Ex - Gatorade

Question 18

Hypothesis

Answer 18

Tentative explanation of observances that acts as a guide for gathering and checking information

Question 19

Intensive Property

Answer 19

Property of a substance that is independent of the amount of the substance / A property of matter that depends only on the type of matter in a sample and not on the amount

Question 20

Kelvin (K)

Answer 20

273.15 K = 0 C

Question 21

Law

Answer 21

Statement that summarizes a vast number of experimental observations, and describes or predicts some aspect of the natural world

Question 22

Law of conservation of matter

Answer 22

When matter converts from one type to another or changes form, there is no detectable change in the total amount of matter present

Question 23

Liquid

Answer 23

State of matter that has a definitive volume but indefinite shape

Question 24

Liter (L)

Answer 24

1 L = 1,000 cm3

Question 25

Macroscopic Domain

Answer 25

Realm of everyday things that are large enough to sense directly by human sight and touch

Question 26

Mass

Answer 26

Fundamental property indicating amount of matter

Question 27

Matter

Answer 27

Anything that occupies space has mass

Question 28

Meter (m)

Answer 28

1 m = 1.094 yards

Question 29

Microscopic Domain

Answer 29

Realm of things that are much too small to be sensed directly

Question 30

Mixture

Answer 30

Matter that can be separated into its components by physical means

Question 31

Molecule

Answer 31

Bonded collection of two or more atoms of the same or different elements

Question 32

Physical Change

Answer 32

Change in the state or properties of matter that does not involve a change in its chemical composition

Question 33

Physical Property

Answer 33

Characteristic of matter that is not associated with any change in its chemical composition

Question 34

Plasma

Answer 34

Gaseous state of matter containing a large number of electrically charged atoms and/or molecules

Question 35

Precision

Answer 35

How closely a measurement matches the same measurement when repeated

Question 36

Pure Substance

Answer 36

Homogeneous substance that has a constant composition

Question 37

Rounding

Answer 37

procedure used to ensure that calculated results properly reflect the uncertainty in the measurements used in the calculation

Question 38

Scientific Method

Answer 38

Path of discovery that leads from question and observation –> to law or hypothesis –> to theory, combined with experimental verification of the hypothesis and any necessary modification of the theory

Question 39

Significant Figures (Sig Figs)

Answer 39

All of the measured digits in a determination, including the uncertain last digit

Question 40

Solid

Answer 40

State of matter that is rigid, has definite shape, and has a fairly constant volume

Question 41

Symbolic Domain

Answer 41

Specialized language used to represent components of the macroscopic and microscopic domains, such as chemical symbols, formulas, equations, graphs, drawings, and calculations

Question 42

Temperature

Answer 42

Intensive property representing the hotness or coldness of matter

Question 43

Theory

Answer 43

Well-substantiated, comprehensive, testable explanation of a particular aspect of nature

Question 44

Uncertainty

Answer 44

Estimate of amount by which measurement differs from true value

Question 45

Unit Conversion Factor

Answer 45

Ratio of equivalent quantities expressed with different units; used to convert from one unit to a different unit

Question 46

Volume

Answer 46

Amount of space occupied by an object

Question 47

Weight

Answer 47

Force that gravity exerts on an object