Endothermic/exothermic reactions

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

What is an exothermic reaction?

Back

A reaction that releases energy to its surroundings, usually in the form of heat.

Front

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

Back

Out or released.

Front

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

Back

In or absorbed.

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 energy from sunlight is absorbed.

Front

What happens to temperature in an exothermic reaction?

Back

The temperature of the surroundings increases.

Front

What happens to temperature in an endothermic reaction?

Back

The temperature of the surroundings decreases.

Front

How can you identify an exothermic reaction from a chemical equation?

Back

Look for products that release energy, often indicated by heat or light.

Front

How can you identify an endothermic reaction from a chemical equation?

Back

Look for reactants that absorb energy, often indicated by a temperature drop.