Видеоурок: Практическая работа №3. Решение задач на распознание органических соединений
Химия. 10 кл.
Тема: Практическая работа №3. Решение экспериментальных задач на распознание органических соединений
Учитель: Тиняков Олег Владимиро...
6 days ago 00:12:55 1
1 month ago 00:56:33 1
3 months ago 00:04:39 1
3 months ago 00:18:51 1
3 months ago 00:23:51 1
3 months ago 00:24:32 1
3 months ago 00:14:43 1
3 months ago 00:11:03 1
3 months ago 00:21:37 1
3 months ago 00:44:10 1
3 months ago 00:05:59 1
3 months ago 00:08:16 1
3 months ago 00:17:37 1
3 months ago 02:22:50 1
3 months ago 00:47:47 1
3 months ago 00:18:01 1
3 months ago 00:05:18 1
3 months ago 00:08:06 1
3 months ago 00:09:50 1
3 months ago 00:10:01 7
3 months ago 00:15:00 1
3 months ago 00:10:32 1
3 months ago 00:11:08 7
3 months ago 00:16:33 1
