Is this a balanced equation? 4NH3+ 5O2 – 4NO + 5H20

The reaction is not balanced.

Explanation:

The reaction expression is given as:

     4NH₃   +   5O₂   →   4NO  +   5H₂O

In a balanced reaction equation, the number of atoms on both sides of the expression is the same.

Now let us investigate;

Elements                            N                          H                       O

Reactants                           4                          12                       10

Products                            4                           10                        9

We see that the number of H and O on both sides of the expression is not the same. The reaction is not balanced.

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