Which definition describes activation energy?

the speed at which reactants form products in a chemical reaction

the short-lived, high-energy intermediate between reactants and products

the diagram showing a change in energy between reactants and products

the minimum energy that a set of reactants must attain before reaction can occur

These traits describe either a chemical or a nuclear reaction. which statements describe a nuclear reaction? check all that apply. involves the loss, gain, or sharing of electrons may involve a change in total mass involve relatively low energy changes occur outside the nucleus involve very high-energy changes involve changes in nuclides when decay occurs