aluminum metal reacts with aqueous iron(iii) oxide to form aqueous aluminum oxide and iron metal. what is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients? aluminum metal reacts with aqueous iron(iii) oxide to form aqueous aluminum oxide and iron metal. what is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients? 1 2 3 4