Азот бывает пятивалентным😱 #химия
2 months ago 00:08:34 1
3 months ago 00:06:33 1
3 months ago 00:51:16 1
4 months ago 00:04:09 1
5 months ago 00:00:59 1
5 months ago 00:08:03 1
5 months ago 00:05:03 1
5 months ago 00:04:40 1
5 months ago 00:12:19 1
6 months ago 00:09:06 1
6 months ago 00:05:36 1
6 months ago 00:08:01 1
7 months ago 00:03:28 1
7 months ago 00:30:32 1
7 months ago 00:03:17 1
7 months ago 00:08:12 1
7 months ago 00:07:36 1
7 months ago 00:04:54 1
7 months ago 00:09:22 1
8 months ago 00:02:54 1
8 months ago 00:02:08 1
8 months ago 00:04:18 1
8 months ago 00:00:26 1
8 months ago 00:00:36 1
