Na2SO3 (aq) + H2SO4 (aq) → SO2 (aq) + Na2SO4 (aq) + H2O (l)
This is an acid-base reaction (neutralization): Na2SO3 is a base, H2SO4 is an acid.
Reactants:
Products:
- SO2 – Sulfur dioxide
- Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
- Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
- Na2SO4
- H2O – Water, oxidane