Now, there are 4 Hydrogen atoms and 2 Oxygen atoms on both sides. The "account books" are closed, and the mass is conserved! 3 Steps to Balance Any Equation

To balance an equation, you need to understand two types of numbers:

2H2+O2→2H2O2 cap H sub 2 plus cap O sub 2 right arrow 2 cap H sub 2 cap O

A balanced chemical equation is a symbolic representation of a chemical reaction where the total number of atoms for each element is exactly the same on both the reactant and product sides . Licensed by Google Why Does It Need to Be Balanced?

: The small numbers within a chemical formula (like the H2Ocap H sub 2 cap O