Fundamentals of Chemistry

Question 1

Physical Property

Answer 1

a quality or condition of a substance that can be observed or measured without changing the substance’s composition

Question 2

Chemical Property

Answer 2

the ability of a substance to undergo a specific chemical change

Question 3

Solid

Answer 3

a form of matter that has a definite shape and volume

Question 4

Liquid

Answer 4

a form of matter that has a indefinite shape and definite volume

Question 5

Gas

Answer 5

a form of matter that has both a indefinite shape and volume

Question 6

Physical Change

Answer 6

when some properties of a materials change but the composition of the substance doesn’t change

Question 7

Chemical Change

Answer 7

a change that produces matter with a different composition than the original matter

Question 8

Mixture

Answer 8

A physical blend of two more substances

Question 9

Solution

Answer 9

A mixture in which one substance (solute) is dissolved and uniformly distributed throughout another substance (solvent).

Question 10

Heterogeneous Mixture

Answer 10

A mixture in which the composition is not uniform.

Question 11

Homogeneous Mixture

Answer 11

A mixture in which the composition is uniform.

Question 12

Element

Answer 12

The simplest form of matter that has a unique set of properties.

Question 13

Compound

Answer 13

A substance that contains two or more elements chemically combined in a fixed proportion.

Question 14

Conservation of Mass

Answer 14

A law that states that in any physical change or chemical reaction, mass is conserved.

Question 15

Chemical Symbol

Answer 15

a one- or two-letter representation of an element

Question 16

Mass

Answer 16

a measure of the amount of matter that an object contains; the SI base unit is kilogram

Question 17

Substance (Pure)

Answer 17

Matter that has a uniform an definite composition; either an element or a compound

Question 18

Volume

Answer 18

a measure of the space occupied by a sample of matter

Question 19

Atom

Answer 19

the smallest unit of an element that retains the properties of the element

Question 20

Molecule

Answer 20

two or more atoms bonded together

Question 21

Chemistry

Answer 21

the study of matter and the changes that it undergoes

Question 22

Matter

Answer 22

anything that has mass and occupies space

Question 23

Law

Answer 23

a concise statement that summarizing the results of many observations and experiments, explains what; often mathematical

Question 24

Science

Answer 24

is a systematic approach that builds and organizes knowledge in the form of testable explanations and predictions about the universe

Question 25

Theory

Answer 25

a well-tested explanation for a broad set of observations; explains why