Chemical Changes

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

Front

Can most chemical changes be reversed?

Back

No, most chemical changes cannot be reversed.

Front

What are some examples of chemical changes?

Back

Fizzing, foaming, burning, rusting, and cooking are all examples of chemical changes.

Front

Is melting ice a chemical or physical change?

Back

Melting ice is a physical change.

Front

What indicates a chemical change?

Back

A temperature change often indicates a chemical change.

Front

What is evidence of a chemical change?

Back

Burning wood, which releases ash and smoke, is evidence of a chemical change.

Front

What happens to the properties of substances during a chemical change?

Back

The properties of substances change during a chemical change, resulting in new substances.

Front

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

Back

A chemical change results in new substances, while a physical change does not change the substance's chemical identity.

Front

What is an example of a physical change?

Back

Dissolving salt in water is an example of a physical change.

Front

What is rusting an example of?

Back

Rusting is an example of a chemical change.