Unit 5 - Endo 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 surrounding temperature 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 does 'exo' mean in the context of chemical reactions?

Back

'Exo' means 'out' or 'released', indicating that energy is released during exothermic reactions.

Front

What does 'endo' mean in the context of chemical reactions?

Back

'Endo' means 'in' or 'absorbed', indicating that energy is absorbed during endothermic reactions.

Front

How can you tell if a reaction is exothermic based on temperature change?

Back

If the temperature of the surroundings increases during a reaction, it is likely exothermic.

Front

How can you tell if a reaction is endothermic based on temperature change?

Back

If the temperature of the surroundings decreases during a reaction, it is likely endothermic.

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 happens to energy in an exothermic reaction?

Back

In an exothermic reaction, energy is released into the surroundings.

Front

What happens to energy in an endothermic reaction?

Back

In an endothermic reaction, energy is absorbed from the surroundings.