Need help with chemstry puzzler thing. Please help?! Explained in Details. THANKS!?

Question

The following ions are included. a / in between two things represents that the one symbol is over the other next to the element(s). It supposed to be a puzzle, but I cant get it. You haveget formulas of compounds using all the ions. Each compound is made up of one cation and one kind of anion. You must use all of them.

K+
AsO 3/-4
SO 2-/4
PO 3-/4
Fe 3+
NH 4+
SO 2-/4
Mg 2+
Na +
NO -/3
SO 2-/4
NO -/3
ClO -/4
Al 3+
Sn 4+
ClO -/3
Ca2 +
OH -
ClO -/4
NO -/3
CO 2-/3
K +
Mg 2+
NH +/4
OH -
NO -/3
ClO -/4
Mg 2+
NH +/4
PO 3-/4
Fe 3+


PLEASE help me figure this out. I;d greatly appreciate it. It's going to drive me crazy.

Answer 1

Just add a proportional number of anions(-) with a proportional number of cations(+) till the equation equal zero. The charge is in the top right hand corner.

2K + SO4 = K2SO4 ((+1 x 2) + -2 = 0) or
3K + PO3 = K3PO3 ((+1 x 3) + -3 = 0) or
K + NO3 = KNO3 (+1 + -1 = 0)

You will also make it easier on yourself, if you match to +2 with the -2, the +3 with the -3, and the +4 with the -4.

Fe + PO4 = FePO4 (+3 + -3 = 0)