What is SO3 plus 2H2O?

To begin with, SO3 is sulfate trioxide, while SO3 -2 is called the sulfite ion.

They both are molecules, consisting of the same types of elements in the same quantity.

Oh My God! They really are so similar. Is there any difference at all, except the one with the charge is called sulfite, and the other with no charge is called sulfur trioxide?

They are exceptionally similar. That I know. It's hard to understand the difference.

Well,

the difference, primarily, is that one has charge and the other hasn't.

But, why?

Much of the answer lies in this reason. It's a fact.

The fact is that - both the molecules