Chemistry Forum

I have to write a paper for Org I, we did an Sn2 rxn w/ 1-iodobutane and triphenylphosphine. We also used acetonitrile as a reagent. I can not figure out how to balance the equation since I have had no practice since gen chem. C4H9I + C18H15P ---C2H3N----> C22H24IP it is balanced w/o the reagent, bu...