Urea (CH4N20) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with
carbon dioxide as follows:
Determine the limiting reactant.
Express your answer as a chemical formula.
2NH3(aq) + CO2(aq) + CH4N20(aq) + H2O(1)

In an industrial synthesis of urea, a chemist combines
139.2 kg of ammonia with 211.4 kg of carbon dioxide and
obtains 162.2 kg of urea.

Determine the limiting reactant