Matter:

1
Matter

• has mass
• takes up space

2
Substance

• has definite uniform composition properties
• elements compounds

3
Physical Properties

• characteristics that can be observed without
  altering the identity
• color, odor, boiling point, density, ... .

4

• Extensive Properties physical properties that
  depend on amount of a substance.
• Intensive Properties physical properties that do
  NOT depend on quantity.

5
Chemical Properties

• characteristics that can be observed only by
  altering the identity
• flammability, reactivity, ... .

6
Physical States
7
Physical States
8
ReviewClassify these as physical or chemical
properties

• density
• reactivity

• Color
• Melting point

9
ReviewClassify these as physical or chemical
properties

• Density- p
• Reactivity- c

• Color- p
• Melting point- p

10
Physical Change

• does NOT alter the identity
• only the arrangement of the particles with each
  other has changed

11
Chemical Change

• alters the identity.
• new substances are formed

12
Signs of Chemical Change

• bubbles/ fizz (gas)
• temp. change
• color change
• odor change
• precipitate (solid)

13
Conservation of Mass

• matter is not created nor destroyed
• the total mass you begin with equals the total
  mass after the reaction

14
Review 1

• What type of change DOES alter the identity of a
  substance?

15
1

• What type of change DOES alter the identity of a
  substance? Chemical

16
Review 2

• What type of change occurs when water turns into
  ice?

17
2

• What type of change occurs when water turns into
  ice? Physical

18
Review 3

• When a sample of water was separated, it
  produced 10.0 g hydrogen and 79.4 g oxygen. How
  much water was in the sample?

19
3

• 10.0 g hydrogen 79.4 g oxygen 89.4 g
  waterp.65 6