Math Tutor DVD – Chemistry Vol. 1 – Atoms, Ions, Isotopes, Compounds and More English | 10 Hours | 720×540 | XviD | 29.97fps 1704kbps | MP3 192kbps | 6.63GB Genre: eLearning Chemistry does not have to be a hard subject if you have the right teacher who knows how to break down the concepts […]