tentukan bilangan oksidasi unsur unsur dalam senyawa di bawah ini a.K2CrO4 b.KClO c. KlO3 d.FeSO4 e.KMnO4

a). Biloks O4 = (-2) x 4 = -8
Biloks K2 = (+1) x 2 = +2
Biloks Cr = +6
_________________ +
Total biloks = 0

b). Biloks O = (-2) x 1 = -2
Biloks K = (+1) x 1 = +1
Biloks Cl = +1
_________________+
Total biloks = 0

c). Biloks O3 = (-2) x 3 = -6
Biloks K = (+1) x 1 = +1
Biloks I = +5
_________________+
Total biloks = 0

d). Biloks O4 = (-2) x 4 = -8
Biloks Fe = (+3) x 1 = +3
Biloks S = +5
_________________+
Total biloks = 0

e). Biloks O4 = (-2) x 4 = -8
Biloks K = (+1) x 1 = +1
Biloks Mn = +7
_________________+
Total biloks = 0
Semoga membantu;))