Видео ютуба по тегу Chemistry O Level

All of IGCSE Chemistry in 7 minutes (summary)
All of IGCSE Chemistry in 7 minutes (summary)
Can I Pass O Level CHEMISTRY in 24 HOURS?
Can I Pass O Level CHEMISTRY in 24 HOURS?
GENERAL CHEMISTRY explained in 19 Minutes
GENERAL CHEMISTRY explained in 19 Minutes
Electrolysis Part 1/3 - Basics and Molten Compounds
Electrolysis Part 1/3 - Basics and Molten Compounds
[Sec 4] 'O' Level Pure Chemistry Revision - TYS Highlights
[Sec 4] 'O' Level Pure Chemistry Revision - TYS Highlights