1.

AgNO_(3)(aq)+NaCl(aq) to AgCl(s) darr+NaNO_(3)(aq) FeS(s)+H_(2)SO_(4)(aq) to FeSO_(4)+ H_(2)Suarr

Answer»

SOLUTION :`DARR` INDICATE the formation of INSOLUBLE SUBSTANCE (precipitate) while `darr` represent the evolution of gas.


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