2 h2 o2---> 2 h2o how many moles of water are produced when 2 moles of hydrogen gas are mixed with 2 moles of oxygen gas?
2 moles of water are produced. Here, hydrogen is the limiting reagent. 1 mole of oxygen is used up with 2 moles of hydrogen to form 2 moles of water. 1 moles of oxygen remains.