: The large numbers placed in front of a molecule (like the 2H2O2 cap H sub 2 cap O
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
: Every time you add a coefficient, recount all atoms to ensure you didn't accidentally unbalance another element. : The large numbers placed in front of
: The small numbers within a chemical formula (like the H2Ocap H sub 2 cap O In chemistry terms, the atoms you start with
The foundation of balancing equations is the . This scientific principle states that matter cannot be created or destroyed in a closed system. In chemistry terms, the atoms you start with (reactants) must equal the atoms you end with (products)—they just get rearranged into new substances. The Anatomy of an 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