oxidation numbers cr2o7 2

4:36

5:52

3:25

7:06

22:14

19:37

13:06

15:35

10:48

2:59

8:18

1:45

3:27

1:43

6:04

1:55

2:39

6:04

5:30

2:00

24:11

24:11

3:54

1:42

1:54

4:00

33:15

21:52

14:44

9:08

2:09

13:39

1:34

کوتاه

2:43

20:00

2:47

1:28