Why can tin sulfide and antimony sulfide be separated from copper sulfide and bismuth sulfide by the addition
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Explain how metal ions such as $\mathrm{Pb}^{2+}$ and $\mathrm{Zn}^{2+}$ are separated by precipitation with hydrogen sulfide.
Write balanced net ionic equations for the following reactions: a. Precipitation of tin(IV) sulfide with $\mathrm{H}_{2} \mathrm{S}$ b. The confirmatory test for antimony c. The confirmatory test for copper d. The dissolution of $\mathrm{Bi}_{2} \mathrm{S}_{3}$ in hot nitric acid
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Yellow ammonium sulphide solution is a suitable reagent used for the separation of (I) $\mathrm{HgS}$ and $\mathrm{PbS}$ (2) $\mathrm{PbS}$ and $\mathrm{Bi}_{2} \mathrm{~S}_{3}$ (3) $\mathrm{Bi}_{2} \mathrm{~S}_{3}$ and $\mathrm{CuS}$ (4) $\mathrm{CdS}$ and $\mathrm{As}_{2} \mathrm{~S}_{3}$
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