2023 Exothermic and Endothermic Reactions

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat or light.

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.

Front

Give an example of an exothermic reaction.

Back

Fireworks exploding is an example of an exothermic reaction.

Front

Give an example of an endothermic reaction.

Back

Baking soda and citric acid mixing is an example of an endothermic reaction.

Front

What happens to energy in an exothermic reaction?

Back

Energy is released into the surroundings.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed from the surroundings.

Front

How can you identify an exothermic reaction on a graph?

Back

In an exothermic reaction graph, the products have lower energy than the reactants, indicating energy release.

Front

How can you identify an endothermic reaction on a graph?

Back

In an endothermic reaction graph, the products have higher energy than the reactants, indicating energy absorption.

Front

What is the significance of rusting in terms of energy?

Back

Rusting is an exothermic process because it releases heat.

Front

What is the role of catalysts in exothermic reactions?

Back

Catalysts can speed up exothermic reactions without being consumed in the process.