Chapter 3

Question 1

Physical forms in which all matter naturally exists on earth

Answer 1

States of Matter

Question 2

Gaseous state of a substance that is a liquid or a solid at room temperature

Answer 2

Vapor

Question 3

Characteristic of matter that can be observed or measured without changing the samples composition

Answer 3

Physical Property

Question 4

Physical property that is dependent upon the amount of substance pressure

Answer 4

Extensive Property

Question 5

Physical property that remains the same no matter how much substance is present

Answer 5

Intensive Property

Question 6

Ability or inability of a substance to combine with or change into one or more new substances

Answer 6

Chemical Property

Question 7

Change that alters a substance without changing composition

Answer 7

Physical Change

Question 8

Transition of matter from one state to another

Answer 8

Phase Change

Question 9

One or more substances changing into new substances

Answer 9

Chemical Change

Question 10

States that mass is neither created nor destroyed during a chemical reaction but is conserved

Answer 10

Law of Conservation of Mass

Question 11

Physical blend of two or more pure substances in any proportion in which each substance retains properties

Answer 11

Mixture

Question 12

Does not have a uniform composition and substance remains distinct

Answer 12

Heterogeneous Mixture

Question 13

Has uniform composition throughout and has a single phase

Answer 13

Homogeneous Mixture

Question 14

Uniform mixture that contains solids, liquids, or gases

Answer 14

Solution

Question 15

Technique uses porous barrier to separate solids from liquids

Answer 15

Filtration

Question 16

Separates a mixture of two liquids with different boiling points

Answer 16

Distillation

Question 17

Separation technique that produces pure solid particles of a substance from a solution that contains the dissolved substances

Answer 17

Crystallization

Question 18

Process when a solid changes directly to a gas

Answer 18

Sublimation

Question 19

Components of a mixture based on the tendency of each component to traveler be drawn across the surface of a fixed substrate

Answer 19

Chromatography

Question 20

Pure substance that cannot be broken down into simpler substances by physical or chemical means

Answer 20

Element

Question 21

Chart that organizes all known elements into rows and columns by increasing atomic number

Answer 21

Periodic Table

Question 22

Combination of two or more different elements

Answer 22

Compound

Question 23

Regardless of amount, a compound is always composed of the same elements in the same proportion by mass

Answer 23

Law of Definite Proportions

Question 24

Percent determined by ratio of mass of each element to the total mass of the compound

Answer 24

Percent by Mass

Question 25

States that different compounds are formed by the combination of the same elements

Answer 25

Law of Multiple Proportions