Hydrogen reacts with oxygen to produce water: 2 H (g) + O (g) 2 HO (g) Which is the limiting reactant in each of the below cases? How much (of which reactant) is leftover after the reaction? 2 molecules of H and 1 molecule of O a. b. 16 molecules of H and 10 molecules of O C. d. e. f. 20 molecules of H and 8 molecules of O2 10 moles of H and 6 moles of O 4.0 g of H and 32.0 g of O 8.0 g of H and 40.0 g of O