Unit 5 - Endothermic and Exothermic Reactions

Front

What is an endothermic reaction?

Back

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

Front

What is an exothermic reaction?

Back

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

Front

In an endothermic reaction, heat is...

Back

taken in or absorbed.

Front

In an exothermic reaction, heat is...

Back

given out or released.

Front

What happens to temperature during an endothermic reaction?

Back

The temperature of the surroundings decreases.

Front

What happens to temperature during an exothermic reaction?

Back

The temperature of the surroundings increases.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis is an example of an endothermic reaction.

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels is an example of an exothermic reaction.

Front

What is the role of heat in breaking chemical bonds?

Back

Breaking chemical bonds requires absorption of heat energy.

Front

What type of reaction is represented by a graph that shows a decrease in temperature?

Back

Endothermic reaction.