Fe2(SO4)3: Fe2(SO4)3 -> 2Fe^3+ + 3SO4^2-
Na2SO4: Na2SO4 -> 2Na^+ + SO4^2-
KNO3: KNO3 -> K^+ + NO3^-
Ba(OH)2: Ba(OH)2 -> Ba^2+ + 2OH-
Fe2(SO4)3: Fe2(SO4)3 -> 2Fe^3+ + 3SO4^2-
Na2SO4: Na2SO4 -> 2Na^+ + SO4^2-
KNO3: KNO3 -> K^+ + NO3^-
Ba(OH)2: Ba(OH)2 -> Ba^2+ + 2OH-