Where m is mass, M is molar mass, V is volume. 4. Avogadro's law. Established by the Italian physicist Avogadro in 1811. Identical volumes of any gases, taken at the same temperature and the same pressure, contain the same number... Read

Group IA (the main subgroup of the first group) of the periodic table includes metals - lithium Li, sodium Na, potassium K, rubidium Rb, cesium Cs and francium Fr. Traditionally, these elements are called alkali metals (ALM), since they... Read

Introduction The study of the chemical properties of individual elements is an integral component of a chemistry course in a modern school, which allows, based on an inductive approach, to make assumptions about the features of chemical... Read

simple bond (single bond, single bond) - a chemical covalent bond carried out by a pair of electrons moving in the field of two atomic nuclei. In chemical compounds in which the average number of electrons... Read

Slide 1 Slide 2 Elements and atoms, taken into the Mendeleev circle, made chemistry the richest and most creative of the sciences. G.Sannikov Slide 3 Chemistry is an amazing science. On the one hand, it is very specific and deals with... Read