SC1

Question 1

What are the states of matter

Answer 1

solid, liquid, gas

Question 2

Describe the particle model of a gas

Answer 2

-particles arranged randomly and far apart
-movement of particles is fast

Question 3

Describe the particle model of a liquid

Answer 3

-particles arranged randomly and close together
-movement of particles, move around each other

Question 4

Describe the particle model of a solid

Answer 4

-particles arranged regular and close together
-movement of particles vibrate about fixed positions

Question 5

What type of change is a state change

Answer 5

a physical change

Question 6

Do chemical properties of a substance change

Answer 6

no they don’t change

Question 7

Why don’t the chemical properties of a substance change?