Question

Write balanced complete ionic equation for HCl(aq)+LiOH(aq)→H2O(l)+LiCl(aq)

Write balanced complete ionic equation for MgS(aq)+CuCl2(aq)→CuS(s)+MgCl2(aq)

Write balanced complete ionic equation for NaOH(aq)+HNO3(aq)→H2O(l)+NaNO3(aq)

Write balanced complete ionic equation for Na3PO4(aq)+NiCl2(aq)→Ni3(PO4)2(s)+NaCl(aq)

Answer 1

1) H+(aq) + Cl-(aq) + Li+(aq) + OH-(aq) --> H2O(l) + Li+(aq) + Cl-(aq)

H+(aq) + OH-(aq) --> H2O(l) (net ionic equation) because Li+ , Cl- are the spectators.

2) Mg2+(aq) + S2-(aq) + Cu2+(aq) + 2 Cl-(aq) --> CuS(s) + Mg2+(aq) + 2 Cl-(aq)

S2-(aq) + Cu2+(aq) --> CuS(s)(net ionic equation), please eliminate the like species on both sides of the equation in the above equation.

3) Na+(aq) + OH- (aq) + H+ + NO3-(aq)→H2O(l) + Na+ + NO3-(aq)

H+(aq) + OH-(aq) ----> H2O(l) (net ionic equation) here, Na+ and NO3- ions are spectators

4) 2 Na3PO4(aq) + 3 NiCl2(aq) --> Ni3(PO4)2(s) + 6 NaCl(aq) (Balanced equation)

6Na+ (aq) + 2PO4 3- (aq) + 3Ni 2+(aq) + 6Cl- (aq) → 6Na + (aq) + 6Cl-(aq) + Ni3(PO4)2(s) (ionic equation)

now please eliminate the common species on both sides which are spectators. i.e Na+, Cl- ions

2PO4 3- (aq) + 3Ni 2+ (aq) → Ni3(PO4)2(s) will be the net ionic equation.

Thank you and good luck.