molecular equation for BaBr2 (aq) + PB(NO3)2 (aq) -> Ba(No3) + Pb(Br2) is that right or is it Ba(No3)2

3 answers

Ba(NO3)2
Barium's Oxidation State is +2, Nitrate's Oxidation state is -1

Does that help?
Mel and Matt are right. I would suggest you write barium nitrate Ba(NO3)2, that's a capital O and not a small o.