Ans 7 a) The molecular equation is given as : Na2S (aq) + ZnCl2 (aq) = ZnS (s) +

Question

Ans 7

a) The molecular equation is given as :

Na2S (aq) + ZnCl2 (aq) = ZnS (s) + 2NaCl (aq)

Ionic equation is given as :

2Na+(aq) + S2-(aq) + Zn2+(aq) + 2Cl-(aq) = ZnS (s) + 2Na+(aq) + 2Cl- (aq)

Net ionic equation is given as :

Zn2+(aq) + S2-(aq) = ZnS (s)

b) Molecular equation :

Mg(NO3)2 (aq) + 2NaOH (aq) = Mg(OH)2 (s) + 2NaNO3 (aq)

Ionic equation is given as :

Mg2+ (aq) + 2NO3- (aq) + 2Na+ (aq) + 2OH- (aq) = Mg(OH)2 (s) + 2Na+ (aq) + 2NO3- (aq)

Net ionic equation :

Mg2+ (aq) + 2OH- (aq) = Mg(OH)2 (s)

Explanation / Answer

7) Write molecular, ionic and net ionic equations for the following reactions: (a) Nas (aq) + ZnCl2(aq) (b) Mg(NOJ2(aq) + 2NaOH(aq) 8) What volume of 0.416 M Mg(NOs)2 shoyld he addod u

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