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Complete and balance the
following double displacement reactions and indicate the formation of any precipitates by considering the
solubility of the salts produced
a.
Ba(NO3)2 + Na2SO4 →
Ba(NO3)2 + Na2SO4 → BaSO4 + NaNO3
Ba(NO3)2(aq) + Na2SO4(aq) → BaSo4(s) + 2NaNO3(aq)
Ba2+
(aq) + 2NO-3 (aq) + 2Na+ (aq) + SO4-(aq) → BaSO4(s) + 2Na+
(aq) + 2NO3-(aq)
BaSO4→ Ba+ + SO4-
b.
Pb(NO3)2(aq) + 2NH4Cl
→ 2PbCl2(s) + 2 NH4NO3(aq)
Pb2+(aq) + NO3-(aq) + , 2NH4+(aq)
+ 2Cl-(aq) → 2PbCl(s) + 2NH4+(aq)
+ NO3-(aq)
PbCl→ Pb+
+ Cl-
c. AgNO3 + NaCl → NANO3 + AGCL
AgNO3(aq) +
NaCl(aq) ---> AgCl(s) + NaNO3(aq)
Ag+ + NO3- + Na+ +
Cl- ---> AgCl(s) + Na+ + NO3-
Ag+ + Cl- ---> AgCl(s
d.
CaCl2 + K2CO3 →
CaCl2
(aq) + K2CO3 (aq) --> 2KCl (aq) + CaCO3 (s)
2K+ (aq) + 2CO3- (aq) + Ca2+ (aq) + 2Cl-
(aq) --> CaCO3 (s) + 2K+ (aq) + 2Cl- (aq)
CaCO3 (s) --> 2CO3- (aq) +
Ca2+ (aq)
e. KOH + Fe(NO3)3 →
3KOH(aq) + Fe(NO3)3(aq)→ Fe(OH)3(s) + 3KNO3(aq)
3k(aq) + OH(aq) + Fe(aq) + NO(aq) → FeOH(s) + k(aq) + NO(aq)
FeOH → Fe+ + OH-
