Question

write down the five balanced equations .in which presipation is formed

Answer 1

The precipitation reaction is defined as the “Chemical reaction occurring in aqueous solutions where two ionic bonds combine forming up insoluble salts.” 

1)AgNO3(aqueous) + KCl(aqueous) —–AgCl(precipitate) + KNO3(aqueous)

2)2KOH(aqueous) + CaCl2(aqueous)—-Ca(OH)2(aqueous) + 2KCl(aqueous)
3)AgNO3(aqueous) + NaCl(aqueous) —- AgCl↓ + NaNO3 (aqueous)

4)Mg(OH)2(s) + 2HCl (aqueous) ——— MgCl2(aqueous) + 2H2O(l)

5)Pb(NO3)2(aqueous)+2KI(aqueous)------------ PbI2(precipitate)+2KNO3(aqueous)

Answer 2

1. AgNO3 +NaCl --- AgCl+ NaNO3
2. Ba(NO3)2(aq)   +   Na2CO3(aq)  ---BaCO3(ppt)   +   2 NaNO3(aq)
3. Pb(NO3)2(aq)   +   2 NH4I(aq) --- PbI2(ppt)   +   2 NH4NO3(aq)
4. 3 CuSO4(aq)   +   2 Na3PO4(aq) --- Cu3(PO4)2 (ppt)   +   3 Na2SO4(aq)
5. CoCl2(aq)   +   2 KOH(aq) ---  Co(OH)2(ppt)   +   2 KCl(aq)