Question

2. Balance the following chemical reactions:
a) N2 + H2_ NH3
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Answer 1

Explanation:

N2 + H2 = NH3

Table-

ELEMENT LHS RHS

N 2 1

H 2 3

So now we multiply ×2 at the RHS of nitrogen. Therefore, the equation becomes:

N 2 + H 2 -----> 2NH3

But hydrogen becomes 2 in LHS and 6 in RHS. therefore, in the LHS, 2 becomes 3. The equation becomes:

N2 + 3H2 = 2NH3