5 сабақ, 2 тақырып 1 ші түсіндірілім: Химиялық реакция теңдеуі, теңестіру:
2 weeks ago 00:32:05 1
2 weeks ago 00:14:55 1
2 weeks ago 01:35:50 7
4 weeks ago 00:05:02 1
1 month ago 00:03:25 1
2 months ago 00:00:20 1
2 months ago 00:18:57 1
2 months ago 00:24:40 1
3 months ago 00:18:55 1
3 months ago 00:53:18 1
3 months ago 00:08:22 1
4 months ago 00:08:28 1
4 months ago 00:16:41 1
5 months ago 00:41:45 1
5 months ago 00:58:01 1
5 months ago 01:57:34 2
5 months ago 00:23:44 1
5 months ago 00:00:09 4
5 months ago 00:08:41 1
5 months ago 00:19:38 1
6 months ago 00:03:11 2
6 months ago 00:07:06 1
6 months ago 00:10:51 1
6 months ago 00:00:34 3
