Constructing balanced ionic equations

[Priyadarshini]

Homework Statement

balance:
SO2 + Br2 + H2O -----> SO4 ^-2 + Br^-1 + H^+1

Homework Equations

The Attempt at a Solution

I think the answer is:
SO2 + Br2 + 2H2O ----> SO4^-2 + 2Br^-1 + 2H^+1
But the answer in the book is:
SO2 + Br2 ----> SO4^-2 + 2Br^-1
Is my answer the correct one?

 

[Borek]

Book answer can't be correct as the oxygen is not balanced.

Not that your answer is OK - count hydrogens on both sides, and see if the charge is balanced. Chances are it was just a typo on your side.

 

[Priyadarshini]

Book answer can't be correct as the oxygen is not balanced.

Not that your answer is OK - count hydrogens on both sides, and see if the charge is balanced. Chances are it was just a typo on your side.

Oh yeah, sorry. It should be SO2 + Br2 + 2H2O ----> SO4^-2 + 2Br^-1 + 4H^+1. Thanks!