Which pair of compounds is soluble in water? A)AgBr and AgI B)CdS and (NH₄)₂S C)KI and Ba(NO₃)₂ D)NaNO₃ and CuCO₃

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KI (potassium iodide) and Ba(NO3)2 (barium nitrate) are both ionic compounds that dissolve in polar solvents like water. AgBr and AgI (silver bromide and silver iodide) are insoluble in water, while CdS and (NH₄)₂S are also insoluble in water due to their lack of polarity. NaNO₃ (sodium nitrate) is soluble in water, but CuCO₃ (copper carbonate) is not.

Which Pair of Compounds Is Soluble in Water