Instructions: Given a scientific passage and an answer, generate a question for the given answer.
Input: Passage: A: The energy is stored in the bonds of the products as chemical energy. In an endothermic reaction, the products have more stored chemical energy than the reactants. This is represented by the graph on the left in the Figure below . In an exothermic reaction, the opposite is true. The products have less stored chemical energy than the reactants. You can see this in the graph on the right in the Figure below . Answer: chemical energy
Output:
Endothermic and exothermic reactions differ in whether the products or reactants store more of what?