The balanced chemical reaction equation in stoichiometry is used to..?

a) Determine the number of moles and their relationships between reactants and products
b) Determine the mass of each product and calculate percent yield
c) Determine the Limiting reactant based on which substance you have the most of
d) None of the above

c) determine the limiting reactant lol I learned this not too long ago

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

dynamic equilibrium is the answer.