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

Answer 3

unit of temperature; water freezes at 0 degrees and boils at 100 degrees on this scale

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

study of the composition, properties,
and interactions of matter

Question 7

compound

Answer 7

pure substance that can be
decomposed into two or more elements

Question 8

cubic centimeter

Answer 8

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

Question 9

cubic meter

Answer 9

SI unit of volume

Question 10

density

Answer 10

ratio of mass to volume for a substance or
object

Question 11

element

Answer 11

substance that is composed of a single
type of atom; a substance that 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

unit of temperature; water freezes at
32 °F and boils at 212 °F on this scale

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

Question 17

homogeneous mixture

Answer 17

(also, solution) combination of substances with a composition that is uniform throughout

Question 18

hypothesis

Answer 18

tentative explanation of observations
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

Question 20

kelvin (K)

Answer 20

SI Unit of Temperature

Question 21

kilogram (kg)

Answer 21

SI Unit of Mass

Question 22

law

Answer 22

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

Question 23

law of conservation of matter

Answer 23

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

Question 24

length

Answer 24

measure of one dimension of an object

Question 25

liquid

Answer 25

state of matter that has a definite volume but indefinite shape

Question 26

liter (L)

Answer 26

(also, cubic decimeter) unit of volume; 1 L = 1,000 cm3

Question 27

macroscopic domain

Answer 27

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

Question 28

mass

Answer 28

fundamental property indicating amount of matter

Question 29

matter

Answer 29

anything that occupies space and has mass

Question 30

meter (m)

Answer 30

standard metric and SI unit of length

Question 31

microscopic domain

Answer 31

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

Question 32

milliliter (mL)

Answer 32

1/1,000 of a liter; equal to 1 cm3

Question 33

mixture

Answer 33

matter that can be separated into its components by physical means

Question 34

molecule

Answer 34

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

Question 35

physical change

Answer 35

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

Question 36

physical property

Answer 36

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

Question 37

plasma

Answer 37

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

Question 38

precision

Answer 38

how closely a measurement matches the same measurement when repeated

Question 39

scientific method

Answer 39

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 40

second (s)

Answer 40

SI unit of time

Question 41

SI Unit

Answer 41

standard units

Question 42

solid

Answer 42

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

Question 43

symbolic domain

Answer 43

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

Question 44

temperature

Answer 44

intensive property representing the hotness or coldness of matter

Question 45

theory

Answer 45

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

Question 46

uncertainty

Answer 46

estimate of amount by which measurement differs from true value

Question 47

unit

Answer 47

standard of comparison for measurements

Question 48

unit conversion factor

Answer 48

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

Question 49

volume

Answer 49

amount of space occupied by an object

Question 50

weight

Answer 50

force that gravity exerts on an object

Question 51

density equation

Answer 51

density = mass/volume

Question 52

Convert Fahrenheit to Celsius

Answer 52

Celsius Temperature = 5/9 * (Fahrenheit Temperature - 32)

Question 53

Convert Celsius to Fahrenheit

Answer 53

Fahrenheit Temperature = (9/5 * celsius temperature) + 32

Question 54

Convert Celsius to Kelvin

Answer 54

Kelvin Temperature = Celsius Temperature + 273.15

Question 55

femto

Answer 55

10^-15

Question 56

pico

Answer 56

10^-12

Question 57

nano

Answer 57

10^-9

Question 58

micro

Answer 58

10^-6

Question 59

milli

Answer 59

10^-3

Question 60

centi

Answer 60

10^-2

Question 61

deci

Answer 61

10^-1

Question 62

kilo

Answer 62

10^3

Question 63

mega

Answer 63

10^6

Question 64

giga

Answer 64

10^9

Question 65

tera

Answer 65

10^12

Question 66

1 dm^3 is equal to

Answer 66

1 Liter

Question 67

1 cm^3 is equal to

Answer 67

1 Milliliter

Question 68

pure substance

Answer 68

homogeneous SUBSTANCE (NOT MIXTURE) that has a constant composition (can be element or compound)