химия 8/оксиды/ОГЭ
на занятие разбираем классификацию оксидов (основные, амфотерные, кислотные, безразличные).
7 months ago 00:17:54 3
9 months ago 01:46:16 1
10 months ago 01:03:23 2
11 months ago 00:21:02 1
11 months ago 00:59:29 1
11 months ago 00:02:55 1
11 months ago 00:13:03 1
11 months ago 00:16:05 1
11 months ago 01:24:59 1
11 months ago 00:08:37 1
12 months ago 00:18:25 1
12 months ago 00:20:05 1
1 year ago 00:09:05 1
1 year ago 00:12:57 4
1 year ago 00:20:42 1
1 year ago 00:05:41 1
1 year ago 00:05:32 6
1 year ago 00:13:00 1
1 year ago 02:13:15 1
1 year ago 00:09:19 1
1 year ago 00:26:41 5
1 year ago 02:24:13 1
1 year ago 02:18:56 1
1 year ago 00:11:16 1
