Problem: Which compound, when added to water, is most likely to increase the solubility of CuS?(a) NaCl(b) KNO3(c) NaCN(d) MgBr2

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(a)

NaCl (aq) + CuS (aq) → Na2S (aq) + CuCl2­ (aq)


(b) 

KNO3 (aq) + CuS (aq) → K2S (aq) + Cu(NO3)2(aq)


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Problem Details

Which compound, when added to water, is most likely to increase the solubility of CuS?
(a) NaCl
(b) KNO3
(c) NaCN
(d) MgBr2

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