Balance Chemical Equation - Online Balancer - Chemistry Online Education

Enter a chemical equation to balance:

Balanced equation:
Fe + S = FeS

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Direct link to this balanced equation:

Instructions on balancing chemical equations:

Enter an equation of a chemical reaction and click 'Balance!'. The answer will appear below
Always use the upper case for the first character in the element name and the lower case for the second character. Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide
To enter an electron into a chemical equation use {-} or e
To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}.
Example: Fe{3+} + I{-} = Fe{2+} + I2
Substitute immutable groups in chemical compounds to avoid ambiguity.
For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced,
but XC2H5 + O2 = XOH + CO2 + H2O will
Compound states [like (s) (aq) or (g)] are not required.
If you do not know what products are enter reagents only and click 'Balance!'. In many cases a complete equation will be suggested.

Examples of complete chemical equations to balance:

Examples of the chemical equations reagents (a complete equation will be suggested):

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