Reaction Profiles and Review Endo/Exo (AQA Chemistry)

Does this show an endothermic or an exothermic reaction?

• Endothermic

• Exothermic

In an endothermic reaction...

• heat is released

• heat is absorbed

In an exothermic reaction...

• heat is released

• heat is absorbed

Is this showing an endothermic or an exothermic reaction?

• Endothermic

• Exothermic

In an endothermic reaction...

• products have more energy than reactants

• reactants have more energy than products

Catalysts increase the reaction rate by lowering the activation energy

• True

• False

For which reaction is the activation energy higher?

• With the catalyst

• Without the catalyst

Which letter shows the activation energy?

• A

• B

• C

• D

• E

Which letter represents the reactants?

• A

• B

• C

• D

• E

Which letter represents the products?

• A

• B

• C

• D

• E