Chem 1411 Chapter 8 Part 3 SD 480p
56:48
Chem 1411 Chapter 8 Part 4 SD 480p
1:23:35
AQA 1.12 Acids and Bases REVISION
1:03:35
A LÓGICA E A INTELIGÊNCIA DA VIDA - Lúcia Helena Galvão da Nova Acrópole
1:27:39
Chem 1411 Chapter 9 Part 2 SD 480p
23:32
Chem 1405 Lab Quantum Number 1 SD 480p
1:47:59
Grade 8 Midterm Science Review
1:38:11
Chem 1411 Chapter 4 Naming Compounds SD 480p
1:03:43