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Short review and workouts on Some Elements in Nature and Industry

13:05

Lesson 1 on some elements in chemistry and industry

14:57

Lesson 2 on some elements in chemistry and industry

03:14

Workout 1 on Some Elements in Nature and Industry

01:55

Workout 2 on Some Elements in Nature and Industry

04:35

Workout 3 on Some Elements in Nature and Industry

01:20

Workout 4 on Some Elements in Nature and Industry

01:47

Workout 5 on Some Elements in Nature and Industry

01:40

Workout 6 on Some Elements in Nature and Industry

02:20

Workout 7 on Some Elements in Nature and Industry

01:26

Workout 8 on Some Elements in Nature and Industry

02:44

Workout 9 on Some Elements in Nature and Industry

02:15

Workout 10 on Some Elements in Nature and Industry

04:01

Workout 11 on Some Elements in Nature and Industry

02:54

Workout 12 on Some Elements in Nature and Industry

01:22

Workout 13 on Some Elements in Nature and Industry

03:38

Workout 14 on Some Elements in Nature and Industry

02:40

Workout 15 on Some Elements in Nature and Industry

02:26

Workout 16 on Some Elements in Nature and Industry

02:40

Workout 17 on Some Elements in Nature and Industry

01:20

Workout 18 on Some Elements in Nature and Industry

04:03

Workout 19 on Some Elements in Nature and Industry

02:13

Workout 20 on Some Elements in Nature and Industry

02:23

Workout 21 on Some Elements in Nature and Industry

02:40

Workout 22 on Some Elements in Nature and Industry

02:34

Workout 23 on Some Elements in Nature and Industry

03:11

Workout 24 on Some Elements in Nature and Industry

01:47

Workout 25 on Some Elements in Nature and Industry