Endothermic and Exothermic Reactions

Front

What is an exothermic reaction?

Back

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

Front

What is an endothermic reaction?

Back

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

Front

What happens to the temperature during an exothermic reaction?

Back

The temperature of the surroundings increases.

Front

What happens to the temperature during an endothermic reaction?

Back

The temperature of the surroundings decreases.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants, where they absorb sunlight to convert carbon dioxide and water into glucose.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change in a reaction.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

In a hand warmer, what type of reaction occurs?

Back

Exothermic reaction.

Front

What is the significance of temperature change in identifying reaction types?

Back

A temperature increase indicates an exothermic reaction, while a temperature decrease indicates an endothermic reaction.