1.

Complete the following reaction. (i) `CaCO_(3) overset(Delta)rarr [A]+underset("gas")([B])` (ii) `[A]+H_(2)O rarr [C]` (iii) `[C]+[B] rarr CaCO_(3)+H_(2)O` (iv) `NH_(4)Cl+[C] overset(Delta)rarr underset("gas")([E])+CaCl_(2)+H_(2)O` (v) `E+H_(2)O+[B]rarr[F]` (vi) `NaCl+[F]rarr [G]+NH_(4)Cl` (vii) `[G] overset(Delta)rarr Na_(2)CO_(3)+H_(2)O+[B]`

Answer» (i) `CaCO_(3)overset(Delta)rarr underset((A))(CaO)+underset((B))(CO_(2))`
(ii) `underset((A))(CaO)+H_(2)O rarr underset((C))(Ca(OH)_(2))`
(iii) `Ca(OH)_(2)+CO_(2) rarr CaCO_(3) darr +H_(2)O`
(iv) `2NH_(4)Cl+underset((C))(Ca(OH)_(2)) overset(Delta)rarr underset((E))(2NH_(3))+CaCl_(2)+2H_(2)O`
(v) `underset((E))(NH_(3))+H_(2)O+underset((B))(CO_(2))rarr underset((F))(NH_(4)HCO_(3))`
(vi) `NaCl+underset((F))(NH_(4)HCO_(3))rarr underset((G))(NaHCO_(3))+underset((D))(NH_(4)Cl)`
(vii) `2NaHCO_(3) overset(Delta) rarr Na_(2)CO_(3)+H_(2)O+underset((B))(CO_(2))`


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