chemistry

Question 1

what does the particle theory of matter state

Answer 1

all matter is made up of tiny particles
particles are always moving
particles move faster at a higher temperature

Question 2

you can use your senses to describe physical properties of a substance

Answer 2

true

Question 3

list 6 clues that a chemical change has occured

Answer 3

• odor
• production of light
• change in color
• gas or bubbles
• change in temperature

Question 4

what does mass = ?

Answer 4

density x volume

Question 5

is a misture of easily distinguishable materials

Answer 5

heterogenous mixture