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Question

Complete and balance the following chemical equations :

(a) Zn(s)+HCl(aq)

(b) Na2CO3(s)+HCl(aq)

(c) NaHCO3(s)+HCl(aq)

(d) NaOH(aq)+HCl(aq)

(e) CuO(s)+HCl(aq)

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Solution

(a) ZnS(s)+2HCl(aq)ZnCl2(aq)+H2S(g)

(b) Na2CO3(s)+2HCl(aq)2NaCl(aq)+H2O(l)+CO2(g)

(c) HCl(aq)+NaHCO3(s)NaCl(aq)+H2O(l)+CO2(g)

(d) HCl+NaOHH2O+NaCl

(e) CuO(s)+2HCl(aq)CuCl2(aq)+H2O(l)


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