Chapter 8, Problem 77E

Consider the reaction:

$2{\text{N}}_{\text{2}}(g)+5O_2(g)+2H_2\text{O(}g\text{)}\to {\text{4HNO}}_{\text{3}}(g)$

If a reaction mixture contains 28g of N_2, 150g of O_2, and 36 g of H₂O, what is the limiting reactant? (Try to do this problem in your head without any written calculations.)