1. Reactants: The starting materials in the reaction. 2. Products: The substances formed as a result of the reaction. 3. Activation Energy (Ea): The energy barrier that must be overcome for the reaction to proceed. 4. Transition State: A high-energy state during the reaction where old bonds are breaking, and new bonds are forming. 5. ΔH (Change in Enthalpy): The difference in energy between the reactants and the products.
