When heated, lithium reacts with nitrogen to form lithium nitride: 6Li( s ) + N 2 ( g ) → 2Li 3 N( s ) What is the theoretical yield of Li 3 N in grams when 8.6 g of Li are heated with 15.4g of N 2 ? Which compound is the limiting reagent? If the actual yield of Li 3 N is 5.89g, what is the percent yield of the reaction?