4 Answers
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H2SO3 >> H2O + SO2
water + sulfur dioxide
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Decomposition Of Sulfurous Acid
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Sulfurous Acid Chemical Formula
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In a manner analogous to carbonic acid sulfurous acid decomposes H2SO3——– SO2 + H2O
carbonic H2CO3 —— CO2 + H2O
both CO2 and SO2 ( as well as SO3 ) are known as acid anhydrides in that they dissolve in water and react with the water to form an oxy acid.
