(Answered) Thallium sulfate has been used as a murder weapon both

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Thallium sulfate has been used as a murder weapon, both domestically and abroad. It is known to have been used by Saddam Hussein's secret police, as well as the KGB. It is a very effective weapon, since it dissolves easily in water and has no taste or smell. Also, it takes several days for symptoms to appear, and when they do, they match those of other common illnesses, so no one attributes it to poisoning. When this compound dissolves in water, which of these ions would be present in the solution?

A. SO-

B. S2-

C. SO42-

D. O2-

E. none of the above

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