Lab Tools and Equipment - Know your glassware and become an expert Chemist! | Chemistry Free Animated Education 4:44 5 years ago 872 682 Скачать Далее
General Safety in Laboratory Workplace Safety and Health Council 3:27 7 years ago 99 140 Скачать Далее
Assessing Risks in the Chemistry Laboratory | ACS College Safety Video #3 American Chemical Society 6:11 2 years ago 43 205 Скачать Далее
