Chemistry is a branch of science that involves the study of the composition, structure and properties of matter. Often known as the central science, it is a creative discipline chiefly concerned with ...

Inorganic chemistry is the study of the structure, properties and reactions of all chemical elements and compounds except for organic compounds (hydrocarbons and their derivatives). Existing ...

News about Donald Trump, the 45th and 47th US president, including comment and features from the Guardian Trump news at a glance: Trump says war is won but ‘we don’t want to leave early’ as oil prices ...