Physical and Chemical Properties of Matter Notes

A substance is defined by its own unique set of physical and chemical properties.

Physical Properties
Characteristics that can be observed without changing the identity of the substance itself. Examples:
  • area
  • absorbency
  • brittleness
  • boiling/condensation point
  • conductivity
  • color
  • density
  • ductility
  • elasticity
  • hardness
  • luster
  • length
  • magnetic attraction
  • malleability
  • mass
  • melting/freezing point
  • odor
  • solubility
  • shape
  • texture
  • transparency
  • temperature
  • volume
  • viscosity
Physical Change
These occur when the substance changes its physical form or appearance, but not its composition. Examples include shape changes, phase changes and dissolving.
Chemical Properties
Characteristics a substance shows when it interacts with, or transforms into other substances. This is a substance's ability to change into another substance. Examples:
  • flammability
  • reaction with water
  • reaction with acids
  • corrosiveness
  • tendency to form compounds
Chemical Change
When a substance (or substances) is converted into a different substance (or substances). This is also called a chemical reaction. This is the process by which a substance changes. After a chemical change the physical and chemical properties of the substance change.