Iron Pyrite (Fool's Gold)is Iron(II)sulfide.What Is Its Formula

question 69

Multiple Choice

Iron pyrite (fool's gold) is iron(II) sulfide.What is its formula?

• A)FeS
• B)FeSO₃
• C)FeSO₄
• D)Fe₂S₃
• E)Fe₂(SO₃)₃

---

Definitions:

Variable Administrative Expenses

Costs that vary in proportion to changes in an organization's activity level, such as sales commissions.

Sunk Cost

A cost that has already been incurred and cannot be recovered, and hence should not influence future business decisions.

Sunk Cost

Costs that have already been incurred and cannot be recovered or reversed.

Model 240 Machine

A hypothetical or specific name for a machine, possibly denoting a particular model or type used in manufacturing or industrial settings.