Nitrogen and hydrogen combine at a high temperature, in the
presence of a catalyst, to produce ammonia. N 2 ( g ) + 3 H 2 ( g )
⟶ 2 NH 3 ( g ) There are four molecules of nitrogen and nine
molecules of hydrogen present in the diagram. When the reaction is
complete, how many molecules of NH 3 are produced? molecules of NH
3 : What is the limiting reactant? nitrogen hydrogen How many
molecules of each reactant are remain after the reaction is
complete? molecules of H 2 : molecules of N 2 :