Question

Rewrite the net ionic reaction. If there is NO reaction, simply write NR.

1) (CuSO₄ + NaOH)

2) (AlCl₃ + NaOH)

3) (Zn(C₂H₃O₂)₂ + NaOH)

4) (Pb(NO₃)₂ + NaOH)

5) (Na₃PO₄ + NaOH)

6) (AlCl₃ + Na₃PO₄)

7) (CuSO₄ + Na₃PO₄)

8) (Zn(C₂H₃O₂)₂ + Na₃PO₄)

Answer 1

Ans :-

1). Molecular equation is :-

CuSO4 (aq) + 2NaOH (aq) -------------------> Cu(OH)2 (s) + Na2SO4 (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like CuSO4, NaOH and Na2SO4 and do not dissociate the weal electrolytes like Cu(OH)2.

Total ionic equation is :-

Cu2+ (aq) + SO42- (aq) + 2Na+ (aq) + 2OH- (aq) -------------------> Cu(OH)2 (s) + 2Na+ (aq) + SO42- (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and SO42- on both the side.

Net ionic equation is :- Cu2+ (aq) + 2OH- (aq) -------------------> Cu(OH)2 (s)

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2). Molecular equation is :-

AlCl3 (aq) + 3NaOH (aq) -------------------> Al(OH)3 (s) + 3NaCl (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like AlCl3, NaOH and NaCl and do not dissociate the weal electrolytes like Al(OH)3.

Total ionic equation is :-

Al3+ (aq) + 3Cl- (aq) + 3Na+ (aq) + 3OH- (aq) -------------------> Al(OH)3 (s) + 3Na+ (aq) + 3Cl- (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and Cl- on both the side.

Net ionic equation is :- Al3+ (aq) + 3OH- (aq) -------------------> Al(OH)3 (s)

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3). Molecular equation is :-

Zn(C2H3O2)2 (aq) + 2NaOH (aq) -------------------> Zn(OH)2 (s) + 2C2H3O2Na (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like Zn(C2H3O2)2, NaOH and C2H3O2Na and do not dissociate the weal electrolytes like Zn(OH)2.

Total ionic equation is :-

Zn2+ (aq) + 2C2H3O2-(aq) + 2Na+ (aq) + 2OH- (aq) -------------------> Zn(OH)2 (s) + 2C2H3O2-(aq) + 2Na+ (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and C2H3O2- on both the side.

Net ionic equation is :- Zn2+ (aq) + 2OH- (aq) -------------------> Zn(OH)2 (s)

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4). Molecular equation is :-

Pb(NO3)2 (aq) + 2NaOH (aq) -------------------> Pb(OH)2 (s) + 2NaNO3 (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like Zn(C2H3O2)2, NaOH and NaNO3 and do not dissociate the weal electrolytes like Pb(OH)2 .

Total ionic equation is :-

Pb2+ (aq) + 2NO3- (aq) + 2Na+ (aq) + 2OH- (aq) -------------------> Pb(OH)2 (s) + 2NO3- (aq) + 2Na+ (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and C2H3O2- on both the side.

Net ionic equation is :- Pb2+ (aq) + 2OH- (aq) -------------------> Pb(OH)2 (s)

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5).

Na3PO4 (aq) + 3NaOH -------------------> No reaction

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6). Molecular equation is :-

AlCl3 (aq) + Na3PO4 (aq) -------------------> AlPO4 (s) + 3NaCl (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like AlCl3, Na3PO4 and NaCl and do not dissociate the weal electrolytes like AlPO4.

Total ionic equation is :-

Al3+ (aq) + 3Cl- (aq) + 3Na+ (aq) + PO43-  (aq) -------------------> AlPO4 (s) + 3Cl- (aq) + 3Na+ (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and Cl- on both the side.

Net ionic equation is :- Al3+ (aq) +PO43-  (aq) -------------------> AlPO4 (s)

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7). Molecular equation is :-

3CuSO4 (aq) + 2Na3PO4 (aq) -------------------> Cu3(PO4)2 (s) + 3Na2SO4 (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like AlCl3, Na3PO4 and NaCl and do not dissociate the weal electrolytes like AlPO4.

Total ionic equation is :-

3Cu2+ (aq) + 3SO42- (aq)+ 6Na+ (aq) + 2PO43-  (aq) -------------------> Cu3(PO4)2 (s) + 3SO42- (aq)+ 6Na+ (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and SO42-on both the side.

Net ionic equation is :- 3Cu2+ (aq) + 2PO43-  (aq) -------------------> Cu3(PO4)2 (s)

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8). Molecular equation is :-

3Zn(C2H3O2)2 (aq) + 2Na3PO4 (aq) -------------------> Zn3(PO4)2 (s) + 6C2H3O2Na (aq)

Total ionic equation can be write by completely dissociate the strong electrolytes like AlCl3, Na3PO4 and NaCl and do not dissociate the weal electrolytes like AlPO4.

Total ionic equation is :-

3Zn2+ (aq) + 6C2H3O2- (aq) + 6Na+ (aq) + 2PO43-  (aq) -------------------> Zn3(PO4)2 (s) + 6C2H3O2- (aq) + 6Na+ (aq)

Net ionic equation can be write by canceling the spectator ions like Na+ and C2H3O2- on both the side.

Net ionic equation is :- 3Zn2+ (aq) +2PO43-  (aq) -------------------> Zn3(PO4)2 (s)

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