Chemistry - Chapter 1

Front 1

distillation

Back 1

a purification process in which a liquid evaporates and then condensed again to a liquid; used to separate dissolved solids from liquids or liquids from liquids according to boiling points

Front 2

compound

Back 2

a substance that can be separated into simpler substances (elements, or other compounds)only by chemical reaction

Front 3

solid

Back 3

matter which has a definite shape and volume

Front 4

analytical chemistry

Back 4

the study of the compound of substance

Front 5

experiment

Back 5

a carefully controlled, repeatable procedure for gathering data to test a hypothesis

Front 6

phase

Back 6

any part of a system with uniform composition and properties

Front 7

liquid

Back 7

a form of matter that flows,has a fixed volume, and takes the shape of its container

Front 8

physcial change

Back 8

an alteration of a substance that does not affect its chemical composition

Front 9

solution

Back 9

a homogeneous mixture

Front 10

physcial property

Back 10

a quality of a substance that can be observed or measured without changing the substance chemical composition

Front 11

physcial chemistry

Back 11

the study of the theoetical basis of chemical behavior,relying on mathematics and physics

Front 12

law of conservation of mass

Back 12

energy is neither created nor destroyed in an ordinary chemical or physical process

Front 13

mixture

Back 13

a combination of two or more substances that are not chemically combined

Front 14

theory

Back 14

a thoroughly tested model that explains why experiments give certain results

Front 15

humongeneous mixture

Back 15

a mixture that is completely uniform in composition, its components are not distinguishable

Front 16

chemical reaction

Back 16

the changing of substances to other substances by the breaking of old bonds and the formation of new bonds

Front 17

mass

Back 17

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

Front 18

gas

Back 18

matter that has no definite shape or volume; it adopts the shape and volume of its container

Front 19

product

Back 19

a substance formed in a chemical reaction

Front 20

organic chemistry

Back 20

the study of compounds that contain the element carbon

Front 21

scientific law

Back 21

a concise statement that summarizes the results

Front 22

substance

Back 22

a sample of matter having a uniform and definite composition, it can be either an element or a compound

Front 23

element

Back 23

a substance that cannot be changed into simpler substance under normal laboratory conditions

Front 24

chemical symbol

Back 24

a one or two letter representation of an element

Front 25

inorganic chemistry

Back 25

the study of substances that do not contain carbon

Front 26

bio - chemistry

Back 26

the study of composition and the changes of composition in living organism

Front 27

vapor

Back 27

a substance in the gaseous state that is ordinarily at (room temperature)a liquid or solid

Front 28

hypothesis

Back 28

a descriptive model used to explain observation

Front 29

matter

Back 29

anything that takes up space and has mass

Front 30

chemical property

Back 30

the ability of a substance to under-go chemical reactions and to form new substances

Front 31

heterogeneous mixture

Back 31

a mixture that is not uniform in composition; its components are really distinguished

Front 32

chemistry

Back 32

the study of the structure, properites, and compositons of substances, and the changes that substances undergo

Front 33

reactant

Back 33

a starting substance in a chemical reaction

Front 34

scientific method

Back 34

an approach to the solution of scientific problems