matter vocab

Question 1

homo

Answer 1

the same

Question 2

heterogeneous mixture

Answer 2

the mix does not look even all over like raisins in oatmeal

Question 3

density

Answer 3

the amount of mass per unit volume.

Question 4

compound

Answer 4

when 2 or more elements combine chemically

Question 5

sublimation

Answer 5

when a solid changes to gas

Question 6

buyancy

Answer 6

how closely packed atoms are

Question 7

value

Answer 7

how much space something takes up

Question 8

elasticity

Answer 8

how easily something goes back into place after ti ahs been stretched or squeezed

Question 9

alloy

Answer 9

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

Question 10

brittleness

Answer 10

a material’s ability to absorb energy before fracturing.

Question 11

chemical change

Answer 11

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

Question 12

chemical property

Answer 12

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

Question 13

chromatography

Answer 13

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

Question 14

combustibility

Answer 14

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

Question 15

compound

Answer 15

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

Question 16

condensation

Answer 16

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

Question 17

condensation point

Answer 17

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

Question 18

crystallization

Answer 18

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

Question 19

density

Answer 19

the amount of mass per unit volume.

Question 20

deposition

Answer 20

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

Question 21

distillation

Answer 21

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

Question 22

enthalpy

Answer 22

the amount of heat in a system at constant pressure.

Question 23

evaporation

Answer 23

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

Question 24

filtration

Answer 24

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

Question 25

flammability

Answer 25

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

Question 26

freezing

Answer 26

when a liquid turns into a solid.

Question 27

freezing point

Answer 27

the temperature at which a liquid turns into a solid.

Question 28

heterogeneous mixture

Answer 28

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

Question 29

homogeneous mixture

Answer 29

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

Question 30

intermolecular force -

Answer 30

any force that can hold or repel particles.

Question 31

malleability

Answer 31

how readily a material’s shape can be changed.

Question 32

matter

Answer 32

anything that has mass and takes up space.

Question 33

melting

Answer 33

when a solid turns into a liquid

Question 34

melting point

Answer 34

the temperature at which a solid turns into a liquid.

Question 35

reactivity

Answer 35

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