Question

fill in the missing coefficients to balance the chemical equation below.
nh₃ + o₂ → 4no + 6h₂o
check it

Explanation:

Step1: Balance nitrogen atoms

On the right - hand side, there are 4 nitrogen atoms in \(4NO\). So, the coefficient of \(NH_3\) should be 4.

Step2: Balance hydrogen atoms

Since the coefficient of \(NH_3\) is 4, there are \(4\times3 = 12\) hydrogen atoms on the left - hand side. On the right - hand side, in \(6H_2O\), there are \(6\times2=12\) hydrogen atoms.

Step3: Balance oxygen atoms

On the right - hand side, in \(4NO\) there are 4 oxygen atoms and in \(6H_2O\) there are 6 oxygen atoms. So, the total number of oxygen atoms on the right - hand side is \(4 + 6=10\). Since each \(O_2\) molecule has 2 oxygen atoms, the coefficient of \(O_2\) is \(\frac{10}{2}=5\).

Answer:

The coefficient of \(NH_3\) is \(4\) and the coefficient of \(O_2\) is \(5\).