What happens when ammonium hydroxide is added to iron (3) chloride?

Oh, dude, when you mix ammonium hydroxide with iron (III) chloride, you get a chemical reaction that forms a reddish-brown precipitate of iron (III) hydroxide. It's like a little chemistry magic show, but with more safety goggles and less top hats. So, yeah, that's what goes down when those two chemicals get cozy.