what is the oxidation number for mno2

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9:55

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10:02

16:01

3:19

17:16

2:01

5:08

کوتاه

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2:01

2:59

7:04

کوتاه

3:55

3:46

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کوتاه

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12:24

4:11

1:14

10:08

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58:46

5:52

5:08

13:55

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