Endothermic and Exothermic Reactions

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 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

Give an example of an endothermic process.

Back

Baking bread and cooking an egg are examples of endothermic processes.

Front

What happens to the temperature in an endothermic reaction?

Back

The temperature decreases because heat is absorbed from the surroundings.

Front

What happens to the temperature in an exothermic reaction?

Back

The temperature increases because heat is released into the surroundings.

Front

What is the main characteristic of an exothermic reaction?

Back

The main characteristic of an exothermic reaction is that it releases energy, usually in the form of heat.

Front

What is the main characteristic of an endothermic reaction?

Back

The main characteristic of an endothermic reaction is that it absorbs energy, usually in the form of heat.

Front

When barium hydroxide and ammonium chloride react, what type of reaction occurs?

Back

This reaction is an endothermic reaction because it absorbs heat, causing the temperature to decrease.

Front

If a chemical reaction is exothermic, what would happen to the temperature?

Back

If a chemical reaction is exothermic, the temperature would increase.

Front

How can you tell if a reaction is endothermic by touching the container?

Back

If the reaction is endothermic, the container will feel cold to the touch because it absorbs heat.