| In these types of reactions the reactants form intermediates which have electrons in an excited state. |
| The rate of chemical reactions often depends on the concentration of the reactants involved. |
| When bonds are broken in a chemical reaction, the reactants involved are colliding with enough kinetic energy to break the atoms apart. |
| The change in heat content of the products relative to the reactants in a chemical reaction is known as the change in enthalpy. |
| The rate constants of protonation of these reactants had been measured previously by manual analysis and their pK values are directly measured. |
| Countless industrial processes use acids and bases as reactants or catalysts to make a variety of consumer goods. |
