Listening History

Ch 8  ( Electro chemistry )

23

2:22:19

مراجعة معمل 2 ريكورد 1

1,365

2:48:11

Ch 11 ( Cement )

54

53:51

Revision 1 - part 1 ( basic & Acidic Radicals )

3

1:40:57

Ch 10 ( hardness & alkalinity )

59

2:16:12

Chp 6 Part 2 - 1

11

2:17:13