Iron (III) Chloride Hexahydrate Is Used as a Coagulant for Sewage

question 21

Multiple Choice

Iron (III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes. What is its formula?

• A) Fe(Cl  6H₂O)₃
• B) Fe₃Cl  6H₂O
• C) FeCl₃(H₂O)₆
• D) Fe₃Cl(H₂O)₆
• E) FeCl₃  6H₂O

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