Jawabanmu

2014-05-07T17:55:29+07:00
Kalsium Fosfat Ca3(PO4)2
Ca = +2
P = +5
Ca3= 2 x 3 = +6
P2 = 5 x 2 = +10
O = ??

Ca3(PO4)2
+6 ... +10 ...    = 0
(O4)2 = -16
O8 = -16
O = -2

Biloks nya -2
3 2 3