#### Balance Chemical Equation - Online Balancer

Warning: one of your compounds is H20 (20 atoms of H). Did you mean H2O (water)?
Did you mean H{+} + NO2{-} + Cr2O7{2-} = Cr{3+} + NO3{-} + H2O ?
Balanced equation:
40 H{+} + 35 NO2{-} + 5 Cr2O7{2-} = 10 Cr{3+} + 35 NO3{-} + 2 H20

 Reaction stoichiometry Limiting reagent
CompoundCoefficientMolar MassMolesWeight
H{+}401.0073914200905
NO2{-}3546.006048579909
Cr2O7{2-}5215.98909715982
Cr{3+}1051.994454260272
NO3{-}3562.005448579909
H20220.1588
Units: molar mass - g/mol, weight - g.
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 PhC2H5 + O2 = PhOH + 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.
• Reaction stoichiometry could be computed for a balanced equation. Enter either the number of moles or weight for one of the compounds to compute the rest.
• Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents.
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