Question

A precipitate will form when aqueous AgNO3 is added to an aqueous solution of KBr NaNO3 Ca(CIO)2 Cu(NO3)2 Mg(NO3)2
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Answer #1

AgNO3(aq) + KBr(aq) ==> AgBr(s) + KNO3(aq)

AgBr is a precipitate

There is no reaction with NaNO3, Cu(NO3)2 and Mg(NO3)2

2 AgNO3(aq) + Ca(ClO4)2(aq) = 2 Ag(ClO4)(aq) + Ca(NO3)2(aq)

So AgNO3 with KBr forms a precipitate

Hence the answer is KBr (in general AgNO3 forms pecipitate with halides)

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A precipitate will form when aqueous AgNO3 is added to an aqueous solution of KBr NaNO3 Ca(CIO)2 Cu(NO3)2 Mg(NO3)2
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