Well, I'm going to give you standard mini-hint #2 -- the reaction has to be possible. I don't think yours is. Standard mini hint #1 is a balanced equation, and you don't really have that, but there's no point in balancing a equation that won't happen. If you have to decide a lab practical all on your own, based on precipitation, you should be able to come up with another one.
Gah. I misread your formula. You should balance it first, anyway.