Question

Are sulfides soluble?

Answer 1

The solubility of sulfides can be explained below:

1. No, All sulfides are not soluble.
2. All alkali metals sulfides and alkaline earth metals sulfides are soluble in water and can form colorless aqueous solutions.
3. Due to the instability of sulfide ions, sulfide ions can undergo hydrolysis and emit hydrogen sulfide gas by producing a strong aqueous solution.
4. Sulfides of Calcium$\left(\mathrm{Ca}\right)$, Barium$\left(\mathrm{Ba}\right)$, Magnesium$\left(\mathrm{Mg}\right)$, and Cesium$\left(\mathrm{Cs}\right)$ are sparingly soluble in water.
5. The insoluble ones include Nickel$\left(\mathrm{Ni}\right)$, Zinc$\left(\mathrm{Zn}\right)$, Aluminum$\left(\mathrm{Al}\right)$, Silver$\left(\mathrm{Ag}\right)$, and Gold$\left(\mathrm{Au}\right)$.

Therefore, the solubility of sulfides is explained in above points.