Chemical Equation Balancer

How to balance a chemical equation

1. Type the equation with = or → between the two sides, such as C3H8 + O2 = CO2 + H2O.
2. The balanced equation appears with the smallest whole-number coefficients.
3. For ions, write the charge at the end with a ^, such as Fe^3+ or MnO4^-.

Frequently asked questions

Why does it say the equation cannot be balanced?

Usually a formula has a typo, or a product is missing, so no set of coefficients makes both sides match.

Why does it say there is more than one way?

The equation combines two or more independent reactions. Balance each reaction on its own.