Explain a solution gave a precipitate when ammonium oxalate

Reference no: EM13522258

A solution gave a precipitate when ammonium oxalate was added but gave no precipitate when ammonium sulfate was added. For each Magnesium group ion(Barium, Magnesium, Strontium, and Calcium) tell whether the ion

a)must be present

b)might be present, or

c)cannot be present

Reference no: EM13522258

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