Chemistry Vocab Unit 1 Chapters 1-3 Portis

Front 1

___ Is the systematic sutyd of matter, its types, properties, structure and changes.

Back 1

Chemistry

Front 2

___ means that matter has a different properties throughout

Back 2

Heterogenous

Front 3

___ means that matter has similar properties throughout.

Back 3

Homogeneous

Front 4

A(n) __ is a characteristic used to describe matter.

Back 4

Property

Front 5

___ is a measure of the amount of matter in a sample.

Back 5

mass

Front 6

___ is a process in which a liquid is changed into a solid

Back 6

Freezing

Front 7

___ is a process in which a solid is changed directly into a gas.

Back 7

Sublimation

Front 8

___ is a process in which a gas is changed directly into a solid.

Back 8

Deposition

Front 9

___ is the temperature at which a liquid is changed into a gas.

Back 9

Boiling Point

Front 10

___ is the temperature at which a solid is changed into a liquid.

Back 10

Melting Point

Front 11

A ___ is a change in which new kinds of matter are formed.

Back 11

Chemical Change

Front 12

A ___ is a change in which no new kinds of matter are formed.

Back 12

Physical Change

Front 13

The ___ is a problem soliving process based on experimentation and reasoning that leads from observations to the contruction of unifying principles for explanation and prediction.

Back 13

Scientific method

Front 14

____ is anything that has mass and occupies space.

Back 14

Matter

Front 15

According to the ____ : every compound must have a definite composition by weight.

Back 15

Law of Definite Composition

Front 16

___ is a state of matter, that has been heated to such a high temperature that the electrons have been ripped away.

Back 16

Plasma

Front 17

A ___ is a visual display used to view the change in one variable as compared with the change in another variable.

Back 17

Graph

Front 18

___ is the nearness of a measurement to its accepted value.

Back 18

Accuracy

Front 19

___ refers to the relative agreement between the numerical values of two or more measurements that were made in exactly the same way.

Back 19

Precision

Front 20

___ is a format used for writing numbers that are very large or numbers that are very small.

Back 20

Scientific Notation

Front 21

___ is a measure of the gavitational attraction on an object.

Back 21

Weight

Front 22

A ___ is anything that can be measured.

Back 22

Quantity

Front 23

___ is the systematic comparison between a knwon standard and an unknown quantity.

Back 23

Measurement

Front 24

___ is the amount of heat required to raise the temperatureof one gram of any substance by one degree centigrade.

Back 24

Specific Heat

Front 25

___ is a form of thermal energy associated with moving molecules

Back 25

Heat

Front 26

___ is the amount of mass per unit volume.

Back 26

Density

Front 27

___ is a measure of a sample's tendency to gain or lose heat.

Back 27

Temperature

Front 28

___ is the ability to do work

Back 28

Energy

Front 29

___ is energy in motion

Back 29

Kinetic Energy

Front 30

___ is stored energy

Back 30

Potential Energy

Front 31

___ is the coldest possible temperature. It is the temperature at which all molecular motion stops.

Back 31

Absolute Zero

Front 32

___ is the amount of force applied through a distance.

Back 32

Work

Front 33

___ is a method for determining the volume of a sample in the lab. It measures how much water is pushed out of the way.

Back 33

Water Displacement

Front 34

A(n) ___ is the curved surface at the top of a liquid layer.

Back 34

Meniscus

Front 35

According to the ___ : In any chemical or physical change that involves a transfer of energy; the total amount of energy before and after the change, must remain the same.

Back 35

Law of conservation of Energy

Front 36

___ is a measure of a sample's average kinetic energy.

Back 36

Temperature

Front 37

According to the ___ : In any chemical or physical change; the total amount of matter before and after the change, must remain the same.

Back 37

Law of Consrvation of Matter

Front 38

A ___ is a carfully devised set of plans and procedures used to obtain observations.

Back 38

Experiment

Front 39

___ is a tentative explanation for an observation.

Back 39

Hypothesis

Front 40

a ___ is a concise statement or mathematical equation concerning an observed relationship.

Back 40

Law

Front 41

___ is a tested explanation for a serires of observations developed over time.

Back 41

Theory

Front 42

___ is a state of matter with definite volume and definite shape

Back 42

Solid

Front 43

___ is a state of matter that has definite volume but no definite shape

Back 43

Liquid

Front 44

___ is a state of matter that has no definite volume and no definite shape.

Back 44

Gas

Front 45

___ is a type of substance that cannot be broken down by ordinary chemical means

Back 45

Element

Front 46

___ is a type of substance that consists of two or more elements that have been chemically combined

Back 46

Compound

Front 47

___ a material that consists of two or more substances that are not chemically combined.

Back 47

Mixture

Front 48

a ___ is a homogeneous mixture consisting of one substance dissolved into another

Back 48

Solution

Front 49

a ___ is a heterogenous mixture consisting of one substnace dispersed throughout another.

Back 49

Suspension

Front 50

A(n) ___ is the smallest particle for an elelment

Back 50

Atom

Front 51

A(n) ___ is the smallest particle of a compound.

Back 51

Molecule

Front 52

A(n) ___ is one or two letter representation for an element.

Back 52

Atomic Symbol

Front 53

A ___ is a short hand method for representing the composition of a substance

Back 53

Chemical Formula

Front 54

A ___ is a shorthand method of describing what occurs in a chemical reaction.

Back 54

Chemical Equation

Front 55

A ___ is a type of property that changes the identity of the sample when it is measured.

Back 55

Chemical Property

Front 56

A ___ is a type of property that does not chamge the identity of the sample when it is measured.

Back 56

Physical Property

Front 57

A(n) ___ is a type of property that DOES DEPEND ON THE AMOUNT OF SAMPLE. If you change how much your sample you have; this property would have a different value.

Back 57

Extensive Property

Front 58

A(n) ___ is a type of property that DOES NOT DEPEND ON AMOUNT OF SAMPLE, no matter how much of your sample you have this property would be the same.

Back 58

Intensive Property

Front 59

a ___ is a solid that falls out of solution when it is made because it is insoluble (does not dissolve)

Back 59

Precipitate

Front 60

___ are the numer of digits in a measurement that you know for sure, plus on more that is estimated

Back 60

Significant Figures