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.