Explanation : The balance equation is
![N_(2) + 8H \rightarrow 2NH_(3) + H_(2)](https://img.qammunity.org/2020/formulas/computers-and-technology/middle-school/56001oii0ypeluh098s85pdi8asvhpop4t.png)
In chemical reaction , the number of atoms for each element and the total charge are the same for both the reactants and the products.
So, we can say that a balance equation follows the law of conservation of mass and energy.