The activation energy of a chemical reaction can be decreased by the addition of
(1) a catalyst (3) electrical energy
(2) an indicator (4) thermal energy

A CATALYST would decrease the activation energy of a reaction thus creating an alternate pathway for the reaction to occur

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic