SCl2 Lewis Structure, Molecular Structure, Hybridization, Bond Angle and Shape

In this synthesis reaction, iron and sulfur combine to form iron(II) sulfide, FeS. The balanced chemical equation isFe (s) S (s)→FeS (s)When 431 g of iron reacted with sulfur, a total of 502 g of iron(II) sulfide were formed. Based on the reaction stoichiometry, 678 g of iron(II) sulfide should have been produced. What is the mass of 502 g known as?actual yieldtheoretical yieldpercent yieldpercent composition