mole concept in chemical equations

14:56

11:24

17:59

15:41

17:28

2:52

4:30

18:00

5:52

1:15

8:10

21:05

4:06

21:05

1:49

12:53

21:05

2:53

12:12

5:44

کوتاه

2:53

2:03

2:57

3:22

3:03

8:19

4:22

1:15:37

7:04

کوتاه

7:29

4:40

7:09

6:19

11:59

1:50

1:24

2:15

1:32