adelinesarae75 adelinesarae75 18-10-2020 Chemistry contestada Given the following balanced equation: 9 Fe2O3 + 2 NH3 → 6 Fe3O4 + N2 + 3 H2O A) how many grams of NH3 are needed to react with 125 grams of Fe2O3? B) how many grams of Fe3O4 will be produced?