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(HS) Chemistry 9 > Matter > Flashcards

Flashcards in Matter Deck (10)
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1
Q

What is matter?

A

Anything that has mass or volume

2
Q

What is mass?

A

The amount of matter in a substance or object

3
Q

What is volume?

A

The amount of space a substance or an object occupies

4
Q

What is a chemical change?

A

A change in matter that occurs when substances combine to form new sunstances

5
Q

What is a physical change?

A

A change in which no new substances form

6
Q

What does the kinetic molecular theory explain?

A

It explains what happens to matter when the kinetic energy of particles changes

7
Q

What are the 4 points of the kinetic molecular theory?

A
  1. All matter is made up of very small particles
  2. There is empty spaces between particles
  3. Particles are constantly moving
  4. Energy makes particles move
8
Q

What is a pure substance?

A

A substance that is made up of only one kind of matter

9
Q

What is an element?

A

A pure substance that cannot be broken down or separated into simpler substances

10
Q

What is a compound?

A

A pure substance composed of at least two elements combined in a specific way