Endothermic and Exothermic Reactions-Levings

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat, resulting in a decrease in temperature.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy to its surroundings, usually in the form of heat, resulting in an increase in temperature.

Front

What happens to temperature during an endothermic reaction?

Back

The temperature decreases as the reaction absorbs heat from the surroundings.

Front

What happens to temperature during an exothermic reaction?

Back

The temperature increases as the reaction releases heat to the surroundings.

Front

Give an example of an endothermic reaction.

Back

Dissolving ammonium nitrate in water is an example of an endothermic reaction.

Front

Give an example of an exothermic reaction.

Back

Combustion of propane in a hot air balloon burner is an example of an exothermic reaction.

Front

What is the role of energy in chemical reactions?

Back

Energy is either absorbed or released during chemical reactions, determining whether the reaction is endothermic or exothermic.

Front

What is combustion?

Back

Combustion is a chemical reaction that typically involves the burning of a fuel in the presence of oxygen, releasing energy in the form of heat and light.

Front

How can you identify an endothermic reaction in a lab?

Back

You can identify an endothermic reaction by measuring a drop in temperature during the reaction.

Front

How can you identify an exothermic reaction in a lab?

Back

You can identify an exothermic reaction by measuring a rise in temperature during the reaction.