Chemical reactions

Front

What is a chemical reaction?

Back

A process where substances (reactants) change into new substances (products) with different properties.

Front

What is evidence of a chemical reaction?

Back

The production of a new substance.

Front

What is a chemical change?

Back

A change that results in the formation of new substances with different properties.

Front

Give an example of a chemical change.

Back

Gasoline burns in a car engine.

Front

What happens to coal when it burns?

Back

It reacts with oxygen to produce carbon dioxide, demonstrating a chemical reaction.

Front

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

Back

A chemical change produces new substances, while a physical change does not.

Front

What is a reactant?

Back

A substance that undergoes a chemical reaction.

Front

What is a product?

Back

A new substance formed as a result of a chemical reaction.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

Front

What is an example of a physical change?

Back

Water freezing to form ice.