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A solution contains one or more of the following ions: Ag+, Ca2+, and Co2+. Lithium bromide is added to the solution and no precipitate forms. An excess of lithium sulfate is then added to the solution and a precipitate forms. The precipitate is filtered off and lithium phosphate is added to the remaining solution, producing a precipitate.

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Answer:

1. Ag+ precipitates. 2. Ca2+ precipitates. 3. Co2+ precipitates.

Explanation:

First AgBr is formed which is practically insoluble in water. CaBr2 and CoBr2 are soluble.

Then precipitates CaSO4. CoSO4 is soluble.

And then precipitates Co2(PO4)3 which is insoluble.

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