is this correct

hi i just need someone to tell me if these equations are correct if not can you please show me how to get the correct answer.

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) + SO^4-(aq) → BaSO4(s) + 2Na⁺ (aq) + 2NO^3-(aq)
BaSO₄→  Ba⁺ + SO₄^–

b.  Pb(NO3)_2(aq) + 2NH₄Cl → 2PbCl2(s) + 2 NH4NO3(aq)
Pb²⁺_(aq)  + NO^3-_(aq) + , 2NH⁴⁺_(aq) + 2Cl^–_(aq) → 2PbCl_(s) + 2NH⁴⁺_(aq) + NO^3-(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) + 2CO^3- (aq) + Ca²⁺ (aq) + 2Cl^– (aq) –> CaCO3 (s) + 2K⁺ (aq) + 2Cl^– (aq) 
CaCO3 (s)  –> 2CO^3- (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^–

 

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