Write formulas for the compounds that form from In and each of the following polyatomic ion: NO−3, SO2−4, PO3−4.

Question

Write formulas for the compounds that form from In and each of the following polyatomic ion: NO−3, SO2−4, PO3−4.
(Assume In charge is 3+.) 
In(+3 charge)

NO3(-1 CHARGE)
SO4(-2 charge)
P4(-3 charge)

Re posting this a little differently. hopefully someone can help me answer this now. Please post to this question. Thank you.

DrBob222 · Answer

If you understand the post below you will know how to do this. I'll check your answers.

MELISSA · Answer

no i don't understand the post below or what one you are referring to. i gave my work in the original posting already.