Are all of the products necessary? This is for an experiment where hydrogen peroxide is added to water, then yeast and either sodium bicarb (NaHCO3) or lemon juice (C6H8O7) is added. This creates bubbles... All I know is that CO2 is produced. Maybe.
You have not presented anything that allows a balance. A reaction is written in the form H + O --> H2O meaning hydrogen and oxygen give water. Now H only exists as H2 and O only exists as O2 so you must find a ratio that respects those conditions.
H2 + O2 --> H2O We notice that the numbers on the left do not agree with those on the right.
2H2 + O2 --> 2H2O Now we check. Four H on the left and same on the right. Two O on the left and same on the right. Ok, that is balanced.
It's not always that easy.