text: list a reagent that will separate the following mixtures by formation of a precipitate. list the precipitate.? 1.ba(no3)3 (aq) & fecl3(aq)  2. lino3(aq) & agno3(aq)  3. pb(no3)2(aq) & agno3(aq)  4. mg(no3)2(aq) & nano3(aq) 1) sulphuric acid will form a ppt with ba 2+ as barium sulphate is insoluble. it wont form with fe3+ as iron sulphate is soluble.  2)hcl will form a ppt with ag (agcl is insoluble)   3)sodium sulphate can  separate this. lead sulphate is insoluble  4)any carbonate can be used to separate this as magnesium carbonate forms a ppt.