Exploring Physical and Chemical Properties of Matter

The video explains the difference between physical and chemical properties. Physical properties, such as boiling and melting points, do not change the chemical identity of a substance. Chemical properties, like flammability and corrosion, involve changes in chemical identity. The video provides examples to illustrate these concepts, including the behavior of water, copper, and acids. It also discusses additional properties like color, viscosity, and pH, highlighting their classification as physical or chemical.

What is a physical property?

• A characteristic that changes the chemical identity of a substance

• A characteristic that does not change the chemical identity of a substance

• A characteristic that describes the reactivity of a substance

• A characteristic that involves a chemical reaction

Tags

NGSS.MS-PS1-4

Which of the following is an example of a physical property?

• Flammability

• Corrosiveness

• Boiling point

• Combustibility

What happens to the chemical identity of water when it boils?

• It becomes a different substance

• It remains H2O

• It changes to H2O2

• It changes to CO2

Tags

NGSS.MS-PS1-4

Why is flammability considered a chemical property?

• Because it involves a change in state

• Because it describes a physical characteristic

• Because it does not change the chemical identity

• Because it involves a chemical reaction

Tags

NGSS.MS-PS1-2

What does ductility describe?

• The ability to burn

• The ability to explode

• The ability to corrode

• The ability to be pulled into wires

Which of the following is a chemical property?

• Malleability

• Color

• Explosiveness

• Viscosity

What does malleability refer to?

• The ability to flow

• The ability to burn

• The ability to be hammered into sheets

• The ability to corrode

What does viscosity measure?

• The color of a substance

• The resistance of a fluid to flow

• The pH level of a solution

• The density of a substance

What does pH indicate?

• The density of a substance

• The color of a substance

• The mass of a substance

• The strength of an acid or base

Why is taste considered a chemical property?

• Because it involves a physical change

• Because it involves a change in state

• Because it describes the acidity or basicity of a substance

• Because it measures the density