Methane (ch4), ammonia (nh3), and oxygen (o2) can react to form hydrogen cyanide (hcn) and water according to this equation: ch4 + nh3 + o2  hcn + h2o you have 10 g of methane and 12 g of ammonia in excess oxygen. answer the following questions: what is the balanced equation for this reaction? which reagent is limiting? explain why. how many grams of hydrogen cyanide will be formed? show your work.