Match the following terms and definitions. 1. two or more units are added together to form a new compound 2. when a reversible reaction is occurring in both directions at the same rate3. all of the chemical reactions in the organism for maintenance of the processes of life 4. the reactants used to form the products can also be formed from the products 5. that which is produced as a result of a chemical reaction 6. the energy required to start a chemical reaction 7. a chemical reaction in which the substrates trade constituent parts synthesis reaction 8. the concentration of reactant product influences the rate and net direction of a reversible reaction 9. the compound is broken into its constituent parts reversible reaction exchange reaction product law of mass action decomposition metabolism activation energy chemical equilibrium