Chemical Equation Balancer SO2 + NaOH = Na2SO3 + H2O

Balanced Chemical Equation

SO2 + 2NaOH = Na2SO3 + H2O

Reaction Information

Sulfur Dioxide + Sodium Hydroxide = Sodium Sulfite + Water
  • Sulfur Dioxide (SO2)
    Sulphur Dioxide Sulfurous Acid Anhydride Sulfurous Oxide Sulfur Oxide Sulphur Dioxide , Sulfur Dioxide SO2 Sulfurous Anhydride R-764
  • Sodium Hydroxide (NaOH)
    Caustic Soda Lye Soda Lye Sodium Hydrate NaOH Sodium Hydroxide White Caustic
  • Sodium Sulfite (Na2SO3)
    Na2SO3 Anhydrous Sodium Sulfite Sodium Sulfite Anhydrous Sodium Sulphite Sulfurous Acid, Disodium Salt Dried Sodium Sulfite
  • Water (H2O)
    Semiheavy Water Tritium Oxide HTO Ditritium Monoxide Tritiated Water Solid Water Water Ice Water Crystalline Water Frozen Water Frozen Ice Water O-18 (18)OH2 H2(18)O Water-(18)O Heavy-oxygen Water Ice H2O Dihydrogen Monoxide Dihydridooxygen [OH2] HOH Hydrogen Hydroxide Dihydrogen Oxide Oxidane Hydrogen Oxide Pure Water 💧 Water O-15


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  • Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.
  • Ionic charges are not yet supported and will be ignored.
  • Replace immutable groups in compounds to avoid ambiguity. For example, 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.
  • You can use parenthesis () or brackets [].

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