Matter And Energy

Front 1

MATTER

Back 1

Matter is made up of particles called atoms and
molecules. It composes everything.

Front 2

ENERGY

Back 2

Energy is the ability to cause change or do work.

Front 3

MATTER

Back 3

Anything that has mass and takes up space.

Front 4

MASS

Back 4

The amount of matter in an object

Front 5

WEIGHT

Back 5

The pull of gravity on
an object.

Front 6

VOLUME

Back 6

The measure of space an object occupies.
Volume
Units: cm3, mL

Front 7

INTERMOLECULAR FORCES

Back 7

Attractive forces holding molecules
together.

Front 8

ENTROPY

Back 8

A measure of the disorder (randomness) of a
system.

Front 9

COMPOSITION

Back 9

What the matter is made of.

Front 10

PROPERTIES

Back 10

Describes the matter.

Front 11

PHYSICAL PROPERTY

Back 11

Can be observed with the senses.
Ex: density, boiling point, solubility, color, shape.

Front 12

CHEMICAL PROPERTY

Back 12

How a substance reacts.
Ex: Burning wood, combustibility

Front 13

PHYSICAL CHANGES

Back 13

Changes in which the identity of the
substance does not change.
(changes in appearance but NOT chemical makeup)

Front 14

CHEMICAL CHANGES

Back 14

The identities of substances change
and a new substance is formed.

Front 15

INTENSIVE

Back 15

does NOT depend
on quantity of
matter.

Front 16

EXTENSIVE

Back 16

depends on
quantity of matter.

Front 17

ATOM

Back 17

The basic building block of matter

Front 18

ELEMENT

Back 18

A type of pure substance which cannot be broken down into simpler substances

Front 19

MONATOMIC

Back 19

Elements consist of unbonded, “like” atoms

Front 20

POLYATOMIC

Back 20

Elements consist of several “like” atoms
bonded together.

Front 21

DIATOMIC ELEMENTS

Back 21

A molecule bonded to itself.

Front 22

ALLOTROPES

Back 22

Different forms of the same element in the
same state of matter

Front 23

MOLECULE

Back 23

neutral groups of bonded atoms

Front 24

COMPOUND

Back 24

A type of pure substance which can be broken
down into simpler substances.

Front 25

FORMULA

Back 25

A combination of chemical symbols that show
what elements make up a compound and the
number of atoms of each element.

Front 26

CHEMICAL EQUATIONS

Back 26

Depict the kind of reactants and products
and their relative amounts in a reaction.

Front 27

(aq)

Back 27

a reactant or product in an aqueous solution

Front 28

CHEMICAL REACTION

Back 28

A rearrangement of atoms. Indicates the
reactants and products of a reaction

Front 29

PRODUCTS

Back 29

what you end up with

Front 30

REACTANTS

Back 30

what you started with

Front 31

LAW OF CONSERVATION OF MATTER

Back 31

In a chemical reaction, matter can neither be created nor destroyed but can change form.

Front 32

SYNTHESIS

Back 32

taking small molecules and putting them
together, usually in many steps, to make
something more complex

Front 33

PURE SUBSTANCES

Back 33

Material in which the composition is the same
throughout.

Front 34

MIXTURE

Back 34

Combination of two or more substances.

Front 35

HOMOGENEOUS

Back 35

Evenly mixed, very small particles

Front 36

HETEROGENEOUS

Back 36

Different composition and properties in
the same sample; unevenly mixed.

Front 37

SOLUTE

Back 37

being dissolved

Front 38

SOLVENT

Back 38

doing dissolving

Front 39

SUSPENSION

Back 39

Settles over time

Front 40

ALLOY

Back 40

a homogeneous mixture of metals

Front 41

COLLOID

Back 41

looks cloudy, cannot see individual particles

Front 42

DENSITY

Back 42

How tightly packed particles are.
The greater the density the more
molecules there are

Front 43

VOLATILE

Back 43

can change into a gas easily at room temp

Front 44

ENERGY

Back 44

the ability to do work

Front 45

POTENTIAL ENERGY

Back 45

stored energy

Front 46

KINETIC ENERGY

Back 46

energy of motion

Front 47

LAW OF CONSERVATION OF ENERGY

Back 47

during a chem. reaction, energy can neither be created nor destroyed

Front 48

EXOTHERMIC

Back 48

gives off heat

Front 49

ENDOTHERMIC

Back 49

absorbs heat

Front 50

TEMPERATURE

Back 50

A measure of the average kinetic energy
(random motion of particles) in a substance.

Front 51

ABSOLUTE ZERO

Back 51

The temperature at which all movement stops.

Front 52

HEAT

Back 52

The energy transferred between objects
that are at different temperatures

Front 53

SPECIFIC HEAT CAPACITY

Back 53

The amount of heat energy needed to raise the
temperature of 1g of a substance 1°C.