Chemistry: Unit 2

Question 1

chemistry

Answer 1

science that deals with the identification of substances

Question 2

matter

Answer 2

something that has mass

Question 3

extensive properties

Answer 3

depends on the amount in the matter

Question 4

intensive properties

Answer 4

physical properties

Question 5

mass

Answer 5

how much space something takes up

Question 6

volume

Answer 6

amount of space occupied by a 3-dimensional object

Question 7

physical property

Answer 7

meausrable property

Question 8

physical change

Answer 8

changes affecting the chemical subsastnace

Question 9

chemical property

Answer 9

charactersitic of a substance

Question 10

chemical change

Answer 10

changes the compostion

Question 11

phase

Answer 11

period of change or process of change

Question 12

solid

Answer 12

stable shape and volume

Question 13

liquid

Answer 13

stable volume, can take any shape

Question 14

gas

Answer 14

unstable volume, unstable shape

Question 15

freezing

Answer 15

liquid to solid

Question 16

melting

Answer 16

solid to liquid

Question 17

vaporization

Answer 17

liquid to vapor

Question 18

condensation

Answer 18

gaseousous to liquid states

Question 19

sublimation

Answer 19

solid to gas

Question 20

despostion

Answer 20

gas to solid

Question 21

substance

Answer 21

specific composition

Question 22

element

Answer 22

substance that cannot be broken down into simpler substances

Question 23

chemical symbol

Answer 23

short hand method of represetning an element

Question 24

compound

Answer 24

substrance formed when two or more chemicals bonded together

Question 25

mixture

Answer 25

uniform and unchanging composition

Question 26

homogeneuous mixture

Answer 26

two or more substance mixed uniformly

Question 27

solution

Answer 27

two or more pure substances

Question 28

heterogeneous mixture

Answer 28

mixed not uniformly two or more or substance

Question 29

filtration

Answer 29

a mixture of solid and liquid is poured into a funnel lined with filter paper the liquid passes through the solid remains separated by filter paper

Question 30

distilation

Answer 30

a process used to seperate liquid with different boili g points

Question 31

chemical reaction

Answer 31

one or more substances the reactants are converted to one or more substances

Question 32

reactant

Answer 32

substace that takes part iin and undergoes change during a reaction

Question 33

product

Answer 33

end product of in a chemical reactions

Question 34

precipitate

Answer 34

deposited in solid form from a solution

Question 35

Law of Conservation of Mass

Answer 35

mass is neither created nor destroyed