Видеоурок ’’Катализаторы и катализ’’ - ХИМИЯ - 9 кл.
Видеоурок ’’Катализаторы и катализ’’ - ХИМИЯ - 9 кл. от проекта (Игорь Жаборовский). Скачать этот и другие видеоуроки можно здесь:
6 months ago 00:02:59 1
7 months ago 00:08:37 1
7 months ago 00:05:41 1
7 months ago 00:06:06 1
7 months ago 00:10:45 1
7 months ago 00:12:52 3
8 months ago 00:03:02 1
9 months ago 00:04:12 1
11 months ago 00:08:32 1
11 months ago 00:13:25 1
12 months ago 00:21:36 1
1 year ago 00:08:10 1
1 year ago 00:13:36 1
2 years ago 00:12:03 1
2 years ago 00:03:02 1
2 years ago 00:11:26 2
2 years ago 00:15:43 1
2 years ago 00:04:31 1
3 years ago 00:08:42 1
3 years ago 00:10:18 1
3 years ago 00:06:56 1
3 years ago 00:04:06 1
3 years ago 00:02:44 1
3 years ago 00:04:53 1
