Unit b matter and chemical change notes(physical & chemical properties)

1. Physical & Chemical
Properties

2. Physical Properties
Physical Properties: a characteristic of matter that can be
observed and measured without changing the chemical
identity of the sample.
Note: It’s important to remember that when a substance
undergoes a physical change, such as melting, its
appearance or state may be altered, but its composition
stays the same.

3. Physical Properties:
• Melting Point
• Boiling Point
• Hardness
• Malleability
• Substance that can be rolled into a sheet
• Ductility
• Substance that can be stretched into a wire
• Crystal Shape
• Solubility
• Substance that can be dissolved into another
• Density
• Conductivity
• Ability to conduct electricity or heat

5. Chemical Properties
Chemical Properties: a property or characteristic of a
substance that is observed during a reaction in which
the chemical composition or identity of the substance
is changed
Note: A chemical change always results in the
formation of a different substance or substances.

6. Chemical Properties:
•Reaction with acids
•Ability to burn
•Reaction with water
•Behavior in the air
•Reaction to heat