Endothermic and Exothermic Reactions-Levings

Front

What is an exothermic reaction?

Back

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

How do exothermic reactions affect the temperature of their surroundings?

Back

Exothermic reactions increase the temperature of their surroundings.

Front

How do endothermic reactions affect the temperature of their surroundings?

Back

Endothermic reactions decrease the temperature of their surroundings.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline, is an example of an exothermic reaction.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants is an example of an endothermic reaction, as it absorbs sunlight energy.

Front

What is the main characteristic of exothermic reactions?

Back

The main characteristic of exothermic reactions is that they release energy, making the surroundings feel hot.

Front

What is the main characteristic of endothermic reactions?

Back

The main characteristic of endothermic reactions is that they absorb energy, making the surroundings feel cold.

Front

What happens to the energy during an exothermic reaction?

Back

In an exothermic reaction, the energy stored in the chemical bonds is released to the surroundings.

Front

What happens to the energy during an endothermic reaction?

Back

In an endothermic reaction, energy is absorbed from the surroundings to break chemical bonds.