"http://en.wikipedia.org/wiki/Stoichiometry"^^ . . "\\(\\nu_B\\)"^^ . . "Stoichiometric Number"@en . . . "http://www.iso.org/iso/catalogue_detail?csnumber=31894"^^ . . "Chemical reactions, as macroscopic unit operations, consist of simply a very large number of elementary reactions, where a single molecule reacts with another molecule. As the reacting molecules (or moieties) consist of a definite set of atoms in an integer ratio, the ratio between reactants in a complete reaction is also in integer ratio. A reaction may consume more than one molecule, and the \"Stoichiometric Number\" counts this number, defined as positive for products (added) and negative for reactants (removed)." .