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Identify the precipitate (if any) that forms when thefollowing solutions are mix

ID: 691378 • Letter: I

Question

Identify the precipitate (if any) that forms when thefollowing solutions are mixed by writing a balanced equation foreach reaction. (Include states-of-matter under SATPconditions in your answer. Enter "NONE" if no reactionoccurs.) (a) Ni(NO3)2 and NaOH (b) NaOH and K2SO4 (c) Na2S andCu(CH3COO)2 Identify the precipitate (if any) that forms when thefollowing solutions are mixed by writing a balanced equation foreach reaction. (Include states-of-matter under SATPconditions in your answer. Enter "NONE" if no reactionoccurs.) (a) Ni(NO3)2 and NaOH (b) NaOH and K2SO4 (c) Na2S andCu(CH3COO)2 (c) Na2S andCu(CH3COO)2

Explanation / Answer

Ni(NO3)2(aq) + 2NaOH(aq) --->Ni(OH)2(s) + 2NaNO3(aq)
2) NaOH and K2SO4 ----->NONE!
3) CuS precipitate Na2S(aq) + Cu(CH3COO)2(aq)---> CuS(s) + 2NaCH3COO(aq)