Jawabanmu

2014-03-27T20:49:46+07:00
Biloks K + biloks Cr + biloks O = 0 <=> +2 + x -8 = 0 <=> x = +6 Jawaban e
2014-03-27T21:00:42+07:00
K2CrO4 = 0
K2 = +2
O4 = -2(4) = -8

K2CrO4 = 0
+2..+(-8) = 0
Cr = +8-2
Cr = +6(e)

semoga membantu:)