FeSO4 (aq) + Ba(OH)2 (aq) = BaSO4 (s) + Fe(OH)2 (s)
2Fe3+(aq) + 3SO4=(aq) + 3Ba2+(aq) + 6OH-(aq) ===> 2Fe(OH)3(s) + 3BaSO4(s)
which one respresents the precipate when iron (III) sulphate aq and barium hydroxide aq are combined.
The second one. BaSO4 is the solid.
To determine which one represents the precipitate when iron (III) sulfate (FeSO4) and barium hydroxide (Ba(OH)2) are combined, we can use the solubility rules.
According to the solubility rules, most sulfate salts (such as BaSO4) are insoluble except for those of Group 1 elements (Li+, Na+, K+, etc.) and ammonium (NH4+). Therefore, BaSO4 is insoluble and will form a precipitate.
On the other hand, hydroxide salts (such as Fe(OH)3) are usually insoluble except for Group 1 hydroxides (LiOH, NaOH, KOH, etc.) and Ba(OH)2. Since Fe(OH)3 is not one of the exceptions, it will also form a precipitate.
So, when FeSO4 (aq) and Ba(OH)2 (aq) are combined, both BaSO4 (s) and Fe(OH)3 (s) will form as precipitates.