Terms

Question 1

Study of the properties and behavior of matter

Answer 1

Chemistry

Question 2

Any Characteristic that allows us to recognize a particular type of matter and to distinguish it from other types

Answer 2

Property

Question 3

Substances that cannot be decomposed into simpler substance

Answer 3

Elements

Question 4

Two or more atoms are joined in specific shapes

Answer 4

Molecules

Question 5

Are substances composed of two or more elements: they contain two or more kinds of atom

Answer 5

Compound

Question 6

Combinations of two or more substances in which each substance retains its chemical identity

Answer 6

Mixtures

Question 7

AKA Vapor- has no fixed volume or shape

Answer 7

Gas

Question 8

Has a distinct volume independent of its container

Answer 8

Liquid

Question 9

(law) the observation that the elemental composition of a compound is ALWAYS THE SAME

Answer 9

Law of constant composition/law of definite proportions

Question 10

Each substance in a mixture retains its chemical identity and properties

Answer 10

Mixtures

Question 11

Do not have the same composition, properties and appearance throughout

Answer 11

Heterogeneous Mixture

Question 12

Mixtures that are uniform throughout

Answer 12

Homogeneous mixture

Question 13

Describe the way a substance may change, or react to form other substances

Answer 13

Chemical Properties

Question 14

Can be observed without changing the identity and composition of the substance

Answer 14

Physical Properties

Question 15

Odor, color, taste, density, temperature, melting point

Do not depend on the amount of sample being examined

Answer 15

Intensive properties

Question 16

Mass, weight, length, width, volume

Depend on the amount of sample

Answer 16

Extensive properties

Question 17

Do not depend on the amount of sample being examined

Answer 17

Intensive Properties

Question 18

Depend on the amount sample

Answer 18

Extensive Properties

Question 19

Handpicking due to physical appearance

Answer 19

Mechanical Separation

Question 20

To separate a volatile solid from a non-volatile solid

Dry Ice, Ammonium Chloride,water& alcohol, napthaline

Answer 20

Sublimation

Question 21

Mixture to be separated is disolved in the solvent

Answer 21

Chromatography

Question 22

To separate a magnetic solid from a heterogeneous mixture

Answer 22

Magnetic Separation

Question 23

To separate a solid from a liquid in a heterogeneous mixture based on gravity

Answer 23

Decantation

Question 24

A process that depends on the different abilities of substance to form gases

To separate a liquid in a homogeneous mixturer

Answer 24

Distillation

Question 25

Separate using cloth or paper

Answer 25

Filtration

Question 26

Define as the capacity to do work or transfer heat

Answer 26

Energy

Question 27

The energy transfered when a force exerted on an object causes a displacement of that object

Answer 27

Work

Question 28

Energy used to cause the temperature of an object to increase

Answer 28

Heat

Question 29

Any push or pull exerted on the object

Answer 29

Force

Question 30

Formula: WORK

Answer 30

w=Fxd

Question 31

The energy of “motion”

Answer 31

Kinetic Energy

Question 32

Q

Question 33

“stored energy”

Answer 33

Potential Energy

Question 34

_is released when bonds between atoms are formed and consumed when bond between atoms are broken

Answer 34

Chemical energy