Chemical and Physical
Properties of Matter
Definitions of Properties
• Physical properties can be observed
without chemically changing matter.
• Chemical properties describe how a
substance interacts with other
Examples of Properties
• Intensive A property that does not change
when the amount of sample changes.
Examples are density, pressure,
• Extensive A property that changes when
the amount of matter in a sample changes.
Examples are mass, volume, length, and
Mass of water 100.0 g 10.0 g
Volume of water 0.100 L 0.010 L
Temperature of water 25 °C 25 °C
Density of water 1.00 g/mL 1.00 g/mL
Density: mass divided by the
volume of a substance
• Density = mass / volume
• Unit: g/ml or g/cm3
• Specific Gravity: has no units!!
• Specific gravity is the density of a substance
relative to some reference substance: ( usually
compared to water.
density of substance
Specific gravity = density of reference substance