H2SO3 is the chemical formula of the sulfurous acid.
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No, H2SO3 is not a salt. It is the chemical formula for sulfurous acid, which is a weak acid formed from sulfur dioxide and water. Salts are typically formed by the reaction of an acid and a base.
The reaction between H2SO3 and KClO3 does not occur. H2SO3 is a weak acid, and KClO3 is a salt. There is no precipitation, gas evolution, or significant heat release that would indicate a chemical reaction taking place between these two substances.
H2SO3 is an acid. It is a weak acid known as sulfurous acid.
Sulfur dioxide gas dissolves in water to form sulfurous acid (H2SO3). This reaction is reversible and the acid can further dissociate to release hydrogen ions (H+) and bisulfite ions (HSO3-).
SO2 + H2O ==> H2SO3 Sulphurous acid is formed.
Sulfuric acid (alternative spelling sulphuric acid) is a strong mineral acid with the molecular formula H2SO4. Its historical name is vitriol. The salts of sulfuric acid are called sulfates. Sulfuric acid is soluble in water at all concentrations.