36:22

Combined Science Paper 41 June 2017 - Dr Hanaa Assil

24:17

IGCSE Chemistry Edexcel - Energetics: Exothermic and Endothermic reactions - Dr Hanaa Assil

30:38

IGCSE Chemistry Edexcel - Q & A on Redox and Reversible reactions Dr Hanaa Assil

6:01

GCSE Chemistry - Reversible Reactions and Equilibrium #49

1:00:34

IGCSE Chemistry (Cambridge) Ch 13 Organic Chemistry

50:19

IGCSE Chemistry Cambridge Ch 14 Electrolysis - Dr. Hanaa Assil

37:36

Ch 12 Rates of Reactions Q&A IGCSE Cambridge - Dr. Hanaa Assil

32:33

Chemical Bonding - Simple molecular and Giant Structures - IGCSE Chemistry - Dr Hanaa Assil