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A solid mixture may contain any if the following: NH4Cl, CaC2O4, NiSO4, PbSO4, and FeCl3. The miture is cokored. It is partially soluble in water and completely soluble in 6 M HNO3. The acid solution gives no precipitate when treated with 0.1 M AgNO3. Identify the components of the solid. EXPLAIN.

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