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0:20:38

Microbial Ecology of Fermented Cabbages (Sauerkraut and Kimchi)

0:06:30

IGCSE Chemistry: Polymers

0:03:40

IGCSE Chemistry: Carboxylic Acids, Alcohols and Esters

0:03:12

IGCSE Chemistry: Oxides

0:01:58

IGCSE Biology: Blood

0:01:25

IGCSE Biology: The Heart

0:04:21

IGCSE Chemistry: Purity of a Substance

0:04:38

IGCSE Chemistry: Extraction of Iron

0:06:33

IGCSE Chemistry: Strong & Weak Acids

0:03:13

IGCSE Chemistry: Metallic Bonding

0:03:56

IGCSE Chemistry: Ionic Bonding

0:04:29

IGCSE Chemistry: Covalent Bonding

0:05:45

IGCSE Chemistry: Introduction to Electrolysis

0:04:38

IGCSE Chemistry: Naming Organic Compounds

0:04:40

IGCSE Chemistry: Electron Structure

0:03:24

Demand and Supply Curve

0:04:18

IGCSE Chemistry: Atoms

0:15:34

IGCSE Physics - Motion Quantities

0:05:02

IGCSE Chemistry: Formation of Ionic Bonds