Physical & Chemical Properties (Q1)

Question 1

Matter

Answer 1

anything that has mass & volume

Question 2

Mixture

Answer 2

2 or more substances physically combined

Question 3

Homogeneous Mixture

Answer 3

same throughout

Question 4

Heterogeneous Mixture

Answer 4

different throughout

Question 5

Pure Substance

Answer 5

matter that cannot be broken down

Question 6

Element

Answer 6

basic form of matter

Question 7

compound

Answer 7

2 or more elements chemically combined

Question 8

What are two differences between mixtures and compounds?

Answer 8

Mixture= any ratio & combine properties of starting materials

Compound = specific fixed ratio & new substance w/ new properties formed

Question 9

Intensive property

Answer 9

not depend on amount of matter

Question 10

Extensive property

Answer 10

does depend on amount of matter

Question 11

Physical Property

Answer 11

can be observed w/out permanently changing substance

Question 12

Chemical property

Answer 12

way one substance reacts w/ another

Question 13

Physical change

Answer 13

change in appearance or phase

Question 14

Chemical change

Answer 14

new substance w/ new properties formed

Question 15

Four signs of chemical change

Answer 15

Unexpected color change
Change in heat or light
Producing new gas
Formation of precipitate

Question 16

Solid

Answer 16

definite volume & shape
tightly packed particles (vibrate)

Question 17

Liquid

Answer 17

Definite Volume but not definite shape
some gaps in particles (flow to fill gaps)

Question 18

Gas

Answer 18

not definite shape or volume
random movement (particles bounce quickly off each other & container)