1. Chemical and Physical Properties of Matter
Notes 7

2. Definitions of Properties
Physical properties can be observed without chemically changing matter.
Chemical properties describe how a substance interacts with other substances.

3. Examples of Properties
PHYSICAL
CHEMICAL
Color
Odor
Phase
Luster
Shape
Malleability
Ductility
Density
solubility
Reactivity
Combustibility
Flammability
Rusting
Corroding
acidity

4. PROPERTIES
Intensive A property that does not change when the amount of sample changes. Examples are density, pressure, temperature, color.
Extensive A property that changes when the amount of matter in a sample changes. Examples are mass, volume, length, and charge

5. EXAMPLE Mass of water 100.0 g 10.0 g Volume of water 0.100 L 0.010 L
Temperature of water
25 °C
Density of water
1.00 g/mL

6. Density: mass divided by the volume of a substance
Density = mass / volume
Unit: g/ml or g/cm3 M D V

7. density of substance density of reference substance
SPECIFIC GRAVITY
Specific Gravity: has no units!!
Specific gravity is the density of a substance relative to some reference substance: ( usually compared to water.
Specific gravity =
density of substance density of reference substance