•Now figure out how to get the same no of atoms of each kind on both sides by using whole no coefficients in front of the species.
•As       H2  + _N2  NH3, then
•           H2  + _N2  _ NH3,  then
•          _ H2  +  _N2  _ NH3
•Now have _ H’s, _N’s on both sides and the lowest set of whole no coefficients have been used.  The equation is balanced.
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