How do you balance this chemical equation: #N_2 + H_2 -> NH_3#? Chemistry Chemical Reactions Balancing Chemical Equations 1 Answer George C. May 5, 2016 #N_2+3H_2 -> 2NH_3# Explanation: Since there are #3# hydrogen atoms in #NH_3# and #2# in #H_2#, we will need a multiple of #3H_2# on the left to balance the right hand side. Then notice that #N_2+3H_2# does balance #2NH_3#, so we're done. Answer link Related questions When balancing equations, which numbers are you allowed to change? why only these? How do I get the chemical equation of aniline to phenylisocyanide? What is a balanced equation? Can you write a balanced equation for BCl3 (g)+H2O (l)-------> H3BO3 (s)+HCl (g)? What is the balanced equation for the chemical reaction #Mg_3N_2+2H_2O -> Mg(OH)_2+NH_3#? Why do chemical equations need to be balanced? How can I balance this chemical equations? Aluminum and hydrochloric acid react to form aluminum... How can I balance this chemical equation? Sodium phosphate and calcium chloride react to form... How can I balance this equation? ____ #KClO_3 -># ____ #KCl +# ____ #O_2# Why is balancing chemical equations important? See all questions in Balancing Chemical Equations Impact of this question 1830 views around the world You can reuse this answer Creative Commons License