Matter Vocab

Question 1

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

Answer 1

Alloy

Question 2

a material’s ability to absorb energy before fracturing.

Answer 2

brittleness

Question 3

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

Answer 3

chemical change

Question 4

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

Answer 4

chemical property

Question 5

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

Answer 5

chromatography

Question 6

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

Answer 6

combustibility

Question 7

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

Answer 7

compound

Question 8

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

Answer 8

condensation

Question 9

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

Answer 9

condensation point

Question 10

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

Answer 10

crystallization

Question 11

the amount of mass per unit volume.

Answer 11

density

Question 12

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

Answer 12

deposition

Question 13

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

Answer 13

distillation

Question 14

the amount of heat in a system at constant pressure.

Answer 14

enthalpy

Question 15

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

Answer 15

evaporation

Question 16

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

Answer 16

filtration

Question 17

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

Answer 17

flammability

Question 18

when a liquid turns into a solid.

Answer 18

freezing

Question 19

the temperature at which a liquid turns into a solid.

Answer 19

freezing point

Question 20

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

Answer 20

heterogeneous mixture

Question 21

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

Answer 21

homogeneous mixture

Question 22

any force that can hold or repel particles.

Answer 22

intermolecular force

Question 23

how readily a material’s shape can be changed.

Answer 23

malleability

Question 24

anything that has mass and takes up space.

Answer 24

matter

Question 25

when a solid turns into a liquid.

Answer 25

melting

Question 26

the temperature at which a solid turns into a liquid.

Answer 26

melting point

Question 27

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

Answer 27

mixture

Question 28

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.

Answer 28

phase change

Question 29

a change which alters a substance without altering its composition.

Answer 29

physical change

Question 30

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.

Answer 30

physical property

Question 31

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

Answer 31

reactivity

Question 32

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

Answer 32

solution

Question 33

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

Answer 33

sublimation

Question 34

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

Answer 34

temperature

Question 35

the phase change from liquid to gas.

Answer 35

vaporization