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1 KMnO4
2
3
4
5 K2Cr2O7
6 KIO4
7
8
9 AlH3
10
11 K2CrO4
12
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15 H2SO4
16
17 Cu2S
18
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20 Cl2O5
21
22 FeO
3
22
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9
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7
2
15
12
1
20
10
18
16
4
5
21
13
8
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