Exothermic and Endothermic Reactions

Front

What is Chemical Energy?

Back

Energy stored in the chemical bonds of a substance.

Front

What do chemical reactions always involve?

Back

Energy changes.

Front

What is Activation Energy?

Back

The energy required to break the bonds in the reactants for a chemical reaction to occur.

Front

What happens in an Exothermic reaction?

Back

More energy is RELEASED than SUPPLIED.

Front

What happens in an Endothermic reaction?

Back

More energy is SUPPLIED than is RELEASED.

Front

How are chemical reactions classified based on energy change?

Back

As either exothermic or endothermic.

Front

What does Exothermic mean?

Back

Energy is released.

Front

What does Endothermic mean?

Back

Energy is absorbed.

Front

Give an example of an Exothermic reaction.

Back

Burning of gasoline.

Front

Give an example of an Endothermic reaction.

Back

Cooking of pancakes.