Consider the balanced chemical reaction shown below. How many moles of Fe3(PO4)2 and NaCl would be produced, respectively, if 9 moles of FeCl2 reacted with an excess amount of Na3PO4?
3FeCl2 (aq) + Na3PO4 (aq) --> Fe3(PO4)2 (aq) + 6NaCl (aq)
a 3, 9
b 3, 18
c 9, 9
d 9, 54
