Chem. 101 -- Chapter 1

Front 1

Descriptive Chemistry

Back 1

The discovery and tabulation of chemical facts

Front 2

Theoretical Chemistry

Back 2

The formulation of theories that, upon verification, unify these facts and combine them into a system

Front 3

Matter
Radiant Energy

Back 3

The universe is composed of _____ and _____.

Front 4

Matter

Back 4

Consists of all of the materials around us -gases, liquids, solids.

Front 5

Mass

Back 5

The quantity that measures an object's resistance to change in its state of rest or motion

Front 6

Weight

Back 6

A measure of the force with which an object is attracted by the earth

Front 7

Chemical Balance

Back 7

States that the mass of an object remains the same at the North Pole as at the equator, and it can easily be determined, at any place on the earth's surface, by comparison with a standard set of masses.

Front 8

Kilogram (kg)

Back 8

The SI unit for mass

Front 9

Material

Back 9

Refers to any kind of matter, whether homogeneous or heterogeneous

Front 10

Homogeneous

Back 10

Material with the same properties
throughout

Front 11

Heterogeneous

Back 11

Material that consists of parts with different properties

Front 12

Phase

Back 12

A homogeneous part of a system, separated from other parts by physical boundaries (i.e. ice = solid, water = liquid, air = gaseous).

Front 13

Substance

Back 13

A homogeneous material with definite chemical composition

Front 14

Solution

Back 14

A homogeneous material that does not have a definite composition

Front 15

Compound

Back 15

A substance that can be decomposed into two or more substances

Front 16

Elementary Substance
(Element)

Back 16

A substance that cannot be decomposed

Front 17

Analysis

Back 17

The process of decomposing a compound into two or more simpler substances

Front 18

Synthesis

Back 18

Forming a substance by combining two or more substances

Front 19

Properties

Back 19

The _____ of substances are their characteristic qualities.

Front 20

Physical Properties

Back 20

Those properties of a substance that can be observed without changing the substance into other substances

Front 21

Melting Point

Back 21

The temperature at which a solid substance melts to form a liquid.

Front 22

Malleability

Back 22

The ease with which a substance can be hammered out into thin sheets

Front 23

Ductility

Back 23

The ease with which the substance can be drawn into a wire

Front 24

Density

Back 24

The mass (weight) of a unit volume (1 cubic centimeter) of the substance

Front 25

Chemical Properties

Back 25

Those properties that relate to its participation in chemical reactions

Front 26

Chemical Reactions

Back 26

The processes that convert substances into other substances

Front 27

Chemistry

Back 27

The science of substances; their structure, their properties, and the reactions that change them into other substances.

Front 28

Element

Back 28

A kind of matter consisting of atoms that all have nuclei with the same electric charge