5 сабақ, 2 тақырып 1 ші түсіндірілім: Химиялық реакция теңдеуі, теңестіру:
2 months ago 00:00:09 1
3 months ago 00:08:22 1
3 months ago 00:12:11 1
3 months ago 00:42:57 1
3 months ago 00:05:02 1
4 months ago 01:08:18 1
4 months ago 00:12:36 1
5 months ago 00:33:43 1
6 months ago 00:32:05 1
6 months ago 00:14:55 1
6 months ago 01:35:50 8
7 months ago 00:00:20 1
7 months ago 00:18:57 1
8 months ago 00:53:18 1
9 months ago 00:08:28 1
9 months ago 00:16:41 1
10 months ago 00:41:45 1
10 months ago 00:58:01 1
10 months ago 01:57:34 2
10 months ago 00:23:44 1
10 months ago 00:08:41 1
11 months ago 00:19:38 1
11 months ago 00:03:11 3
11 months ago 00:07:06 1
