H2+O2→H2Ocap H sub 2 plus cap O sub 2 right arrow cap H sub 2 cap O
This is because you have two oxygen atoms on the left but only one on the right. To fix it, we add coefficients: what is a balanced chemical equation
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 H2+O2→H2Ocap H sub 2 plus cap O sub
: List how many atoms of each element are on the reactant (left) and product (right) sides. we add coefficients: Now