Linear equivalent chemical names exist that can and do specify any complex structural formula ( see chemical nomenclature ) .
Such names must use many terms ( words ) , rather than the simple element symbols , numbers , and simple typographical symbols that define a chemical formula .
Linear equivalent chemical names exist that can and do specify any complex structural formula ( see chemical nomenclature ) , but such names must use many terms ( words ) , rather than the simple element symbols , numbers , and simple typographical symbols that define a chemical formula .