Jawabanmu

2014-04-27T18:51:26+07:00
H3PO4
biloks P = +5

maaf kalau salah
7 4 7
2014-04-27T18:54:19+07:00
H3PO4
3(biloks H) + biloks P + 4(biloks O) = 0
3(1) + P + 4(-2) = 0
3 + P + (-8) = 0
P + (-5) = 0
P = 5
14 3 14