Complete the reaction, which is part of the electron transport chain. The abbreviation Q represents coenzyme Q. Use the appropriate abbreviation for the product. FADH 2 + Q ⟶ FADH2+Q⟶ The reactant that is reduced is . In complex III, electrons are transferred from coenzyme Q to cytochrome c, which contains iron. QH 2 + 2 cyt c ( Fe 3 + ) ⟶ Q + 2 cyt c ( Fe x ) + 2 H + QH2+2cyt c(Fe3+)⟶Q+2cyt c(Fex)+2H+ Determine the oxidation number for iron on the right side of the reaction arrow.