A molecular equation is a type of chemical equation that shows the reactants and products of a chemical reaction in their molecular form. In this representation, all compounds are written as intact molecules, rather than as ions. This format helps to visualize the overall reaction without focusing on the individual ions involved. Molecular equations are useful for understanding the stoichiometry of a reaction, which involves the ratios of reactants and products. They are often used in conjunction with other types of equations, such as ionic equations and net ionic equations, to provide a more detailed view of the chemical processes taking place.