In the explosion of a hydrogen-filled balloon, 0.20 g of hydrogen reacted with 1.6 g of oxygen. How many grams of water vapor are formed? (Water vapor is the only product.) What formula should I use?

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180