H2so3
sulfurous acid or H2SO3
so2 + h2o -> h2so3
Dihydrogen Sulfur Trioxide or sulfurous acid
So2 + h2o ===> h2so3
The reaction is very violent and exothermic.
it turns to sulphourus acid. SO2+H2O-->H2SO3
Sulfurous acid is formed H2O + SO2 ----> H2SO3
SO2 plus H2O equals H2SO3 which is Sulfurous Acid. CO2 plus H2O equals H2CO3which is Carbonic Acid. It also forms HNO3 which is nitric acid.
Dissolution of sulfur dioxide (SO2) in water (H2O) produces an acidic solution, making sulfurous acid (H2SO3). SO2 + H2O ---> H2SO3.
There are two consecutive equilibrium reactions:Hydration SO2,g + H2O H2SO3,aqProtolysis H2SO3,aq + H2O HSO3-aq + H3O+aq
Sulfur dioxide is the anhydride of sulfurous acid, H2SO3; the acid minus this oxide is water.