List the Ions, Including the Number of Each Type, Present

Multiple Choice

List the ions, including the number of each type, present in the compound, Fe₂(C₂O₄) ₃·2H₂O. Hint: Think about the requirements for forming ionic compounds and how this affects the number of each ion present in the formula.

A) 2Fe³⁺, 6C⁴⁺, 12O^2-
B) 3Fe⁴⁺, 2CO₄^3-; 2OH^-
C) 3Fe²⁺, 3C₂O₄^2-
D) 3Fe⁴⁺, 2CO₄^3-; 2H₂O^2-
E) 2Fe³⁺, 3CO₂^2-; 2 H₂O