c. If 20.7 grams of lead combines with 25.4 grams of iodine, how many grams of lead (II) iodide would be produced? d. If 51.8 grams of lead combines with iodine and produces 115.2 grams of lead (II) iodide, how many grams of iodine were used in the reaction? Using the balanced equation 2 H2 + Oz > 2 H20 e. If 40 grams of hydrogen combines with 320 grams of oxygen, how many grams of water would be produced? f. If 80 grams of oxygen combines with hydrogen and produces 90 grams of water, how many grams of hydrogen were used in the reaction