Алюминий. Химия 9 класс.
Алюминий - крылатый металл. Положение в таблице Менделеева. Свойства Алюминия. Применение. Залежи алюминия безграничны.
5 years ago 00:04:26 41
5 years ago 00:20:08 15
5 years ago 00:03:49 23
5 years ago 00:04:30 22
4 years ago 00:15:17 17
5 years ago 00:33:00 16
2 years ago 00:10:29 2
10 years ago 00:02:17 16
4 years ago 00:19:03 29
5 years ago 00:19:09 8
9 years ago 00:06:14 37
4 years ago 00:03:01 71
10 years ago 00:25:53 53
5 years ago 00:02:32 19
6 years ago 00:19:09 30
2 years ago 00:00:49 138
9 years ago 00:08:21 138
3 years ago 00:14:44 6
10 years ago 00:05:55 209
12 years ago 00:02:55 18
6 years ago 00:12:30 515
5 years ago 00:03:01 15
2 years ago 00:21:52 1
10 years ago 00:02:25 194
