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