First we need to find out what is not balanced. We can make a chart.
Side 1. Side 2.
H-2. H-2
N-1. N-1
O-4. O-4
Li-1. Li-1
It seems that this is already balanced because there is an equal amount of elements on each side.
Hope this helps and hope you have a great day. Please make brainiest if it’s possible.