Аллотропия, свойства металлов и неметаллов. Смотри видео, если учишься в 8 классе
1 week ago 00:05:48 66
2 months ago 00:06:01 16
2 months ago 00:05:23 7
3 months ago 01:22:28 11
3 months ago 01:26:41 4
3 months ago 01:23:43 8
3 months ago 01:25:24 6
4 months ago 00:13:17 176
4 months ago 00:10:47 21
4 months ago 00:08:39 94
4 months ago 00:06:37 71
4 months ago 00:11:41 68
8 months ago 01:10:09 1
9 months ago 00:12:50 1
9 months ago 01:04:42 1
10 months ago 00:09:05 1
10 months ago 00:01:51 1
10 months ago 00:14:53 1
11 months ago 00:13:00 1
11 months ago 00:46:13 1
12 months ago 00:21:21 1
1 year ago 01:39:17 58
1 year ago 00:04:17 5
1 year ago 00:03:57 1
