Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Analytical chemistry is the science of obtaining, processing, and communicating information about the composition and structure of matter. In other words, it is determining what matter is and how much ...

THE first International Conference in Brussels on the Theory of Radiation in 1911 (see NATURE, vol. lxxxviii., p. 82) owed its inception to Mr. Ernest Solvay, and proved a great success. Shortly ...