If you were to raise the temperature, it would provide more energy for the reverse reaction to occur (because it is endothermic) which would consume some of the products of the forward reaction
Hope this helps
Activation energy is needed so reactants can move together, overcome forces of repulsion, and to begin breaking bonds.
An exothermic reaction occurs when the energy used to break the bonds in the reactants (the starting stuff) is less than the energy released when new bonds are made in the products (the stuff you end up with). ... Combustion is an example of an exothermic reaction- you can feel the heat given off if you get too close!
chemistry sucks a**
it should be all of them because it asks if you included all of those in your answer