8 класс.Химическая связь.
#химическаясвязь#схемыобразованияхимической связи#ковалентнаясвязь#
2 years ago 00:16:54 15
5 years ago 00:02:54 27
5 years ago 00:03:10 18
5 years ago 00:04:37 19
4 years ago 00:10:05 14
7 years ago 00:03:23 25
5 years ago 00:02:44 69
2 years ago 00:13:49 7
5 years ago 00:06:12 2
5 years ago 00:17:20 0
5 years ago 00:02:57 119
1 year ago 00:13:00 1
3 years ago 00:51:22 21
5 years ago 00:03:45 12
2 years ago 00:11:14 2
5 years ago 00:03:10 30
5 years ago 00:07:58 0
1 year ago 00:09:10 7
2 years ago 00:06:18 25
5 years ago 00:07:35 1
4 years ago 00:05:15 2
5 years ago 00:03:55 18
5 years ago 00:09:32 1
5 years ago 00:19:12 0
