laws of chemical combination explained in daltons atomic theory

2:28

12:02

26:09

8:42

14:54

19:45

16:46

17:04

17:04

4:37

50:27

1:10

1:14

8:12

9:42

3:47

6:43

12:18

8:21

5:51

1:06:08

1:14:25

9:38

29:54

3:20

29:55

1:41

6:56

6:24

1:03

21:05

21:05

21:35

2:52

کوتاه

21:26

21:35

7:29

1:15:37

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