Energy in Reactions

Front

What are the products in a chemical reaction?

Back

The substances formed as a result of a chemical reaction, such as ZnSO₄ and Cu.

Front

What happens to energy when new bonds form in a chemical reaction?

Back

Energy is released when new bonds form.

Front

What is a substance that is formed as the result of a chemical reaction?

Back

Product.

Front

What characterizes an exothermic reaction?

Back

It gives out thermal energy.

Front

What is an example of a chemical change?

Back

Burning a piece of paper.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is activation energy?

Back

The minimum energy required to start a chemical reaction.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.