Bilangan Oksidasi Mn Sama Dengan 7 Terdapat Dalam Senyawa.doc

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Bilangan oksidasi Mn sama dengan 7 terdapat dalam senyawa……. A. B. C. D. E.

MnO2 K2MnO4 KMnO4 MnSO4 Mn2O3

Jawab : C. KMnO4 Alasan : A. MnO2 Biloks (Mn) Mn Mn

+ + +

2 biloks (O) 2 (-2) -4 Mn Mn

=0 =0 =0 =0+4 =4

B. K2MnO4 2 Biloks K 2 (1)

+ +

Biloks (Mn) Mn

+ +

4 biloks (O) 4 (-2)

=0 =0

Mn

+

-8

=0

Mn

+

-6

=0+6

Mn Mn

=0+6 =6

+ +

4 biloks (O) 4 (-2)

=0 =0

Mn

+

-8

=0

Mn

+

-7

=0

Mn Mn

=0+7 =7

2

C. KMnO4 Biloks K 1 1

D. MnSO4 Biloks Mn Mn Mn

+

+ +

Biloks (Mn) Mn

+

+ +

Biloks S +6

+ +

4 biloks (O) 4 (-2)

=0 =0

+

+6

+

-8

=0

+

-2

=0

Mn Mn

=0+2 =2

Mn

E. Mn2O3 2 Biloks (Mn) + 2 Mn + 2 Mn +

3 biloks (O) 3 (-2) -6 2 Mn 2 Mn

=0 =0 =0 =0+6 =6

Mn

=

Mn

=3

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