Answer: e. one molecule of sulfurous acid
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The equation when when one molecule of SO2 reacts with one molecule of water is:
[tex]SO_2+H_2O\rightarrow H_2SO_3[/tex]
Thus the product formed is one molecule of sulphurous acid.
