Silver nitrate would not react with HCl while Zinc Sulphide would react with HCl forming Zinc Chloride and evolving H2S gas.
AgNO3 +HCl---> No reaction
ZnS + 2HCl -------> ZnCl2 + H2S
Simply remember the solubility rules.
ZnS + 2HCl -> ZnCl2 + H2S
all of these compounds are soluble.
AgNO3 + HCl -> AgCl + HNO3
because silver chloride is insoluble, this reaction will give a precipitate.VA:F [1.9.4_1102]
How could you determine whether a white powder was zinc sulfide or sodium carbonate using a hydrochloric acid solution.
A cubic centimeter of calcium carbonate weighs more than a cubic centimeter of sodium chloride.
AgCl will precipitate out of solution in the reaction of silver and hydrochloric acid in a white cloud of precipitate.
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To determine what the white substance is we must add it to HCl.
H2s
yes
169-172
129
To determine what the white substance is we must add it to HCl.
156
H2s
129
No, it is iron sulfide
yes
Hydrogen sulfide (H2S) is released.
169-172
166
156
129
MgS(s) + 2HCl(aq) --> H2S(g) + MgCl2(aq)