). These tell you how many atoms of that element are in a single molecule. when balancing, or you'll change the substance itself.
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 what is a balanced chemical equation
2H2+O2→2H2O2 cap H sub 2 plus cap O sub 2 right arrow 2 cap H sub 2 cap O what is a balanced chemical equation
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
H2+O2→H2Ocap H sub 2 plus cap O sub 2 right arrow cap H sub 2 cap O