The solubility of gypsum in water can be
increased by,
(1) Passing CO2
(2) By increasing temperature
(3) Adding NH4CI
(4) Adding (NH4)2SO4
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The reaction product is useful for treating soils. Anhydrous calcium sulfate occurs in nature as the mineral anhydrite. The dihydrate, or gypsum (CaSO4. ... Its solubility in water is increased by acids, ammonium chloride, or nitrate; it is diminished by magnesium sulfate.
Explanation:
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