Exothermic and Endothermic Reactions

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.

Front

What happens to the temperature during an exothermic reaction?

Back

The temperature increases.

Front

What happens to the temperature during an endothermic reaction?

Back

The temperature decreases.

Front

In an endothermic reaction, heat is...

Back

taken in.

Front

In an exothermic reaction, heat is...

Back

given out.

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis in plants, where sunlight is absorbed.

Front

How can you identify an exothermic reaction?

Back

By feeling the reaction mixture; it will feel warm to the touch.

Front

How can you identify an endothermic reaction?

Back

By feeling the reaction mixture; it will feel cold to the touch.