What is the chemical representation of iron(II) acetate?

Iron(II) acetate is a compound composed of iron in the +2 oxidation state and acetate ions. The acetate ion has the formula C₂H₃O₂⁻. In the case of iron(II) acetate, which contains one iron cation and two acetate anions, the correct chemical representation must reflect this stoichiometry.

The formula for iron(II) acetate is Fe(C₂H₃O₂)₂ because it indicates that there is one iron atom corresponding to two acetate ions. The parentheses are used to denote that there are two acetate ions associated with the single iron ion, which properly represents the ratio of the ions in the compound.

The other options don't accurately reflect the correct number of acetate ions needed to balance the charge of the iron ion. For instance, the formula that features a single acetate ion or is missing the correct number of acetate groups does not represent the correct stoichiometry for iron(II) acetate. Therefore, the choice that shows one iron atom combined with two acetate ions encapsulates the correct chemical identity of this compound.