Consider the following reaction. 3Si + 2N2 --> Si3N4 What is the percent yield of Si3N4 from this reaction when 21.45 mols of Si are reacted with excess N2 producing 5.92 moles of Si3N4?

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?