matter vocab

Question 1

homo

Answer 1

the same

Question 2

Alloy

Answer 2

a homogeneous mixture of metals, or a mixture of a metal and a nonmetal in which the metal is the major component.

Question 3

Brittleness

Answer 3

a material’s ability to absorb energy before fracturing.

Question 4

chemical change

Answer 4

any change that results in the formation of a new chemical substance.

Question 5

chemical property

Answer 5

a characteristic of a substance that’s observed during a chemical reaction.

Question 6

chromatography

Answer 6

parts of a mixture are separated based on the ability of each dissolved component to travel through materials at different speeds.

Question 7

combustibility

Answer 7

occurs when a material catches fire at a temperature above 43 degrees Celsius.

Question 8

compound

Answer 8

any substance formed from two or more elements that have been joined together chemically.

Question 9

condensation

Answer 9

the phase change that occurs when water vapor cools down to form liquid water.

Question 10

condensation point

Answer 10

the temperature at which a gas turns into a liquid at standard pressure.

Question 11

crystallization

Answer 11

the separation of a pure solid substance from a solution containing the dissolved substance.

Question 12

density

Answer 12

the amount of mass per unit volume.

Question 13

deposition

Answer 13

when a gas changes directly into a solid without going through the liquid phase.

Question 14

distillation

Answer 14

the process that separates Homogenous mixtures based on the different boiling points of the substances.

Question 15

Enthalpy

Answer 15

the amount of heat in a system at constant pressure.

Question 16

evaporation

Answer 16

occurs on the surface of a liquid as it changes into a gas.

Question 17

filtration

Answer 17

a physical process used to separate solids from liquids by passing them through a barrier.

Question 18

flammability

Answer 18

occurs when a material catches fire at a temperature below 43 degrees celsius.

Question 19

freezing

Answer 19

when a liquid turns into a solid.

Question 20

freezing point

Answer 20

the temperature at which a liquid turns into a solid.

Question 21

heterogeneous mixture

Answer 21

a combination of two or more substances in which the original substances are separated into physical distinct regions.

Question 22

homogeneous mixture

Answer 22

a combination of two or more substances that have uniform composition and chemical properties throughout; also known as a solution.

Question 23

intermolecular force

Answer 23

any force that can hold or repel particles.

Question 24

malleability

Answer 24

how readily a material’s shape can be changed.

Question 25

matter

Answer 25

anything that has mass and takes up space.

Question 26

melting

Answer 26

when a solid turns into a liquid.

Question 27

melting point

Answer 27

the temperature at which a solid turns into a liquid.

Question 28

mixture

Answer 28

a combination of two or more pure substances in which each pure substance retains its individual chemical properties.

Question 29

phase change

Answer 29

a special type of physical change in which a substance transitions among the states of matter, solid, liquid, and gas, but the chemical properties of the substance remain the same.

Question 30

physical change

Answer 30

a change which alters a substance without altering its composition.

Question 31

physical property

Answer 31

a characteristic that can be observed or measured without changing the chemical makeup of a substance. Types include color, odor, texture, boiling point, melting point, and density.

Question 32

reactivity

Answer 32

the relative ability of a substance to undergo a chemical reaction.

Question 33

solution

Answer 33

a combination of two or more substances that have uniform composition and chemical properties throughout; also known as a homogeneous mixture.

Question 34

sublimation

Answer 34

when a solid transitions into a gas without going through the liquid phase.

Question 35

temperature

Answer 35

a measure of the random kinetic energy in a sample of matter.

Question 36

vaporization

Answer 36

the phase change from liquid to gas