Endothermic and Exothermic Reactions

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

In an exothermic reaction, heat is...

Back

given out.

Front

In an endothermic reaction, heat is...

Back

taken in.

Front

What happens to energy in an exothermic reaction?

Back

Energy is released when chemical bonds that release a lot of energy are formed.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed when chemical bonds are broken.

Front

True or False: In an endothermic reaction, the reaction is releasing energy.

Back

False.

Front

Which reaction type absorbs heat?

Back

Endothermic.

Front

Which reaction type releases heat?

Back

Exothermic.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.