The activation energy of an endothermic

The activation energy of an endothermic reaction must be greater that the required ΔH

Explanation:

In chemistral reaction, when you have endothermic reaction, the energy of reactives must be less that energy of products, because we need energy to make them. As we need it, that's why we say that it is endothermic reaction, remember that if you want to calculate ΔH, you should do a substraction between, activation energies.

it should be all of them because it asks if you included all of those in your answer

explanation: