Алюминий. Химия 9 класс.
Алюминий - крылатый металл. Положение в таблице Менделеева. Свойства Алюминия. Применение. Залежи алюминия безграничны.
2 months ago 00:00:23 1
2 months ago 00:11:58 1
2 months ago 00:21:42 1
2 months ago 00:10:07 26
2 months ago 00:13:53 1
3 months ago 00:00:30 1
3 months ago 00:06:14 1
3 months ago 00:13:10 1
4 months ago 01:20:43 1
4 months ago 01:24:22 3
4 months ago 00:05:07 4
5 months ago 05:04:21 1
5 months ago 02:21:28 1
5 months ago 00:06:14 1
5 months ago 00:12:51 1
5 months ago 00:12:41 1
5 months ago 00:19:03 1
5 months ago 00:24:32 1
5 months ago 00:52:54 1
6 months ago 00:01:52 1
6 months ago 00:21:06 1
6 months ago 00:17:42 1
6 months ago 00:26:13 1
6 months ago 00:16:09 3
