Три марганцовки
Ход восстановления перманганата калия в кислой, нейтральной и щелочной среде.
2 months ago 00:07:19 1
4 months ago 00:05:04 1
5 months ago 00:17:38 1
6 months ago 00:05:58 1
6 months ago 00:00:55 1
7 months ago 00:03:20 1
8 months ago 00:06:45 1
8 months ago 00:16:09 1
8 months ago 00:03:55 1
12 months ago 00:11:00 1
1 year ago 00:27:25 1
1 year ago 00:12:29 1
2 years ago 00:09:34 1
2 years ago 00:12:22 1
2 years ago 00:10:31 1
2 years ago 00:15:51 1
2 years ago 00:27:26 1
4 years ago 00:10:20 1
4 years ago 00:05:54 1
4 years ago 00:05:38 4
5 years ago 00:01:09 11
5 years ago 00:05:32 1
5 years ago 00:02:38 3
6 years ago 00:06:51 7
