Interesting and very difficult to put into x amount of letters.
H2SO3 is an acid. It is a weak acid known as sulfurous acid.
The conjugate base of H2SO3 is HSO3- and the conjugate acid is H3O+.
H2SO3 is the chemical formula of the sulfurous acid.
Sulfurous acid H2SO3 is a weak di-protic acid.
H2so3--------------------------------2h+ + (so3)2-
H2SO3 ( Sulphurous Acid) as ther name suggests , it is an acid. Note the spelling of the name, It is the sulphur in oxidation state (IV ; (4)) Compare to Sulphuric Acid (H2SO4), where the sulphur is in oxidation state (VI : (6)).
The formula for sulfurous acid is H2SO3.
Dihydrogen Sulfur Trioxide or sulfurous acid
H2so3
H2SO3 is sulfurous acid, similar to the more famous H2SO4which is sulfuric acid.
Sulphuric acid = H2SO4
The correct name for the compound H2SO3 is sulfurous acid.