Physical and Chemical Change/Properties

Front

What is a chemical change?

Back

A chemical change occurs when two or more substances combine to make a new chemical substance.

Front

What is a physical change?

Back

A physical change is a change in which some physical properties change, but the substance keeps its identity.

Front

What are physical properties?

Back

Physical properties are characteristics that can be observed without changing the identity of the substance.

Front

What is an example of a chemical change?

Back

Mixing milk and vinegar to form a white, chunky solid.

Front

What is an example of a physical change?

Back

Dissolving sugar in water.

Front

What indicates a chemical change has occurred?

Back

Indicators include temperature change, color change, gas production, or formation of a precipitate.

Front

What happens to the identity of a substance during a physical change?

Back

The identity of the substance remains the same.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters physical properties without changing the substance's identity, while a chemical change results in the formation of new substances.

Front

What is an example of a physical property?

Back

Color, odor, melting point, and boiling point are examples of physical properties.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.