Chemistry Vocab Ch 1 And 2

Front 1

Matter

Back 1

Anything that has mass and occupies space

Front 2

Chemistry

Back 2

The study of composition of matter and the changes that matter undergoes

Front 3

Organic chemistry

Back 3

Any chemistry is the study of all chemicals containing carbon

Front 4

Inorganic chemistry

Back 4

the study of chemicals that do not contain carbon

Front 5

Biochemistry

Back 5

the study of processes that take place in living oranisms

Front 6

Analytical chemistry

Back 6

the area of study that focuses on the composition of matter

Front 7

Physical chemistry

Back 7

the area that deals with the mechanism, rate, and energy transfer that occurs when matter undergoes a change

Front 8

Pure chemistry

Back 8

the pursuit of chemical knowledge for its own sake

Front 9

Applied chemistry

Back 9

research that is directed toward a practical goal or application

Front 10

Technology

Back 10

the means by which a society provides its member with those things needed and desired

Front 11

Scientific method

Back 11

a logical, systematic approach to the solution of a scientific method

Front 12

Observation

Back 12

Made by using your senses to obtain information

Front 13

Hypothesis

Back 13

a proposed explanation for an observation

Front 14

Experiment

Back 14

a procedure that is used to test a hypothesis

Front 15

Independent variable

Back 15

the manipulated variable of an experiment

Front 16

Dependent variable

Back 16

the responding variable

Front 17

Model

Back 17

a representation of an object or event

Front 18

Theory

Back 18

a well tested explanation for a broad set of observation

Front 19

Scientific law

Back 19

a concise statement that summarizes the results of many observations and experiments

Front 20

Mass

Back 20

A measure of the amount of matter the object contains

Front 21

Volume

Back 21

A measure of the space occupied by an object

Front 22

Extensive property

Back 22

A property that depends on the amount of matter in a sample

Front 23

Intensive property

Back 23

A property that depends on the type of matter in a sample, not the amount of matter

Front 24

Substance

Back 24

Matter that has a uniform and definite composition

Front 25

Physical property

Back 25

A quality or condition of a substance that can be observed or measured

Front 26

Solid

Back 26

A form of matter that has a definite shape and volume

Front 27

Liquid

Back 27

A form of matter that has an indefinite shape, flows, yet has a fixed volume

Front 28

Gas

Back 28

A form of matter that takes both the shape and volume of its container

Front 29

Vapor

Back 29

The gaseous state of a substance that is generally a liquid or solid at room temperature, ex water vapor

Front 30

Physical change

Back 30

During a physical change, some properties of a material change, but the composition of the material does not change

Front 31

Mixture

Back 31

A physical blend of two or more components

Front 32

Heterogeneous mixture

Back 32

A mixture in which the composition is not uniform throughout

Front 33

Homogeneous mixture

Back 33

A mixture in which the composition is uniform throughout

Front 34

Solution

Back 34

another name for homogeneous mixture

Front 35

Phase

Back 35

Any part of a sample with uniform composition and properties

Front 36

Filtration

Back 36

The process that separates a solid from the liquid in a heterogenous mixture

Front 37

Distillation

Back 37

When a liquid is boiled to produce a vapor that is then condensed into liquid

Front 38

Element

Back 38

the simplest form of matter that has a unique set of properties

Front 39

Compound

Back 39

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

Front 40

Chemical change

Back 40

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

Front 41

Chemical symbol

Back 41

the letters representing elements and chemicals

Front 42

Periodic table

Back 42

An arrangement of elements in which the elements are separated into groups based on a set of repeating properties

Front 43

Period

Back 43

Each horizontal row of the periodic table

Front 44

Groups

Back 44

Each vertical column of the periodic table

Front 45

Chemical property

Back 45

The ability of a substance to undergo a specific chemical change

Front 46

Chemical reaction

Back 46

when one or more substances change into one or more new substances

Front 47

Reactant

Back 47

A substance present at the start of the reaction

Front 48

Product

Back 48

A substance produced in the reaction

Front 49

Precipitate

Back 49

A solid that forms and settles out of a liquid mixture

Front 50

Law of conservation of mass

Back 50

The law that states that when matter undergoes a chemical reaction, no matter is destroyed or produced