Answer: The chemical formula for sulfurous acid is [tex]H_2SO_3[/tex]
Explanation:
Sulfurous acid consists of 3 elements which are hydrogen, sulfur and oxygen atoms.
This compound is made by the combination of hydrogen ion [tex](H^+)[/tex] and sulfite ion [tex](SO_3^{2-})[/tex]
By criss-cross method, the oxidation state of the ions are exchanged and they form the subscripts of the opposite ions. This results in the formation of a neutral compound.
Thus, the chemical formula for this compound is [tex]H_2SO_3[/tex]
