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Write the steps for balancing the chemical equation for the formation of ammonia by the combination of nitrogen and hydrogen.

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i. First, write unbalanced equation for the given reaction.
N2 + H2 → NH3
ii. Examine the number of atoms of each element present in the unbalanced equation.
iii. To balance hydrogen on left hand side, put coefficient ‘3’ as ‘3H2’.
N2 + 3H2 → NH3
iv. To balance hydrogen atoms on right hand side, put coefficient ‘2’ as ‘2NH3’.
N2 + 3H2 → 2NH3

v. Now consider the element nitrogen. Nitrogen atoms are 2, on both, left and right hand side.
vi. Thus, balanced chemical equation is:
N2 + 3H2 → 2NH3

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