3fe + 4h2o < => fe3o4 + 4h21) how many molecules of h2 are produced? 2) how many oxygen atoms are found in the products? 3) how many moles of fe3o4 are formed? 4) what is the ratio of the number of moles of fe atoms to the moles of h2o molecules? 5) how many hydrogen atoms are found in the reactants? choices for 1, 2, 3, and 5: 0, 1, 2, 3, 4choices for 4: 1/4, 3/4, 4/4