One of the major issues in formalizing the dynamics of chemical reactions is that the graph representation of such reactions is not immediate. This is due to the case that chemical equations involve more than one reactants and products can also be more than one. Over the last decade, an increased attention to reaction dynamics, combined with the intensive application of computers, mathematical modeling of chemical processes, has brought graph theory to the forefront of research. It offers an advanced and powerful formalism for the description of chemical reactions and their intrinsic reaction mechanisms. This paper proposes an elegant method of representing a chemical equation as directed graph.