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 to its surroundings.

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

Is respiration an exothermic or endothermic reaction?

Back

Exothermic.

Front

What type of reaction occurs in a hand warmer?

Back

Exothermic.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed from the surroundings.

Front

What happens to energy in an exothermic reaction?

Back

Energy is released into the surroundings.

Front

In an endothermic reaction, where are the products in terms of energy compared to the reactants?

Back

The products are at a higher energy level than the reactants.

Front

In an exothermic reaction, where are the products in terms of energy compared to the reactants?

Back

The products are at a lower energy level than the reactants.

Front

What type of reaction occurs in a cold pack?

Back

Endothermic.

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline.