1.3 Properties and Change. Chem@161.....

Properties and change chem

1. 1.3 Changes and Properties of Matter

2. Physical Change of Matter

3. Physical Changes and Properties of Matter
•Physical Changes
•A substance does not change into a new substance.
•Example
•Ice (s) changing to water (l) changing to steam (g)

•Physical properties
•Density (mass/volume)
•Color intensity
•Particle size
•Melting/freezing point
•Boiling point
•Texture

Intrinsic vs extrinsic (dependent on amount) property

4. Physical Change

5. Chemical Changes and Properties of Matter
•Chemical change or chemical
reaction
•Making a new compound

•The transformation of one or
more atoms or molecules into
one or more different
molecules
2 Fe
(s)
+ 3 O
2

(g)
?????? 2 Fe
2
O
3

(s)

6. Chemical Change
Chemical Property
The term or phrase that describes the propensity to undergo
chemical change
•Flammability
•Combustibility
•Corrosive