Химия. 8 класс. Водород. Получение, свойства и применение /
Тема урока: Водород. Получение, свойства и применение
С понедельника по пятницу с 09:00-18:00 телевизионные уроки в эфире EL ARNA
Запись телеуроков:
3 months ago 00:04:54 1
3 months ago 00:12:20 1
3 months ago 00:09:46 1
3 months ago 00:09:43 1
3 months ago 02:50:47 1
3 months ago 00:30:22 1
3 months ago 00:40:21 1
3 months ago 00:35:48 1
3 months ago 00:04:05 1
3 months ago 00:04:30 1
3 months ago 00:48:49 1
3 months ago 00:15:36 12
3 months ago 02:46:50 1
3 months ago 00:24:42 8
3 months ago 00:17:34 3
3 months ago 01:39:58 1
3 months ago 00:09:36 1
3 months ago 00:12:45 1
3 months ago 00:04:15 1
3 months ago 00:03:41 1
3 months ago 01:45:38 1
3 months ago 00:29:19 1
3 months ago 00:02:51 1
3 months ago 00:02:11 1
