Question

1. ____ is the amount of energy that must be supplied to get a chemical reaction started.

activation energy

exothermic energy

reactant energy

endothermic energy

Explanation:

Activation energy is defined as the minimum energy required to initiate a chemical reaction. Exothermic and endothermic refer to heat release/absorption in reactions. Reactant energy is about the energy of reactants, not the energy to start the reaction.

Answer:

Activation energy