WebA chemist (from Greek chēm(ía) alchemy; replacing chymist from Medieval Latin alchemist) is a scientist trained in the study of chemistry.Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms.Chemists carefully …

WebMay 31, 2014 · History of Chemistry | Famous Chemists. By Mary Bagley. published 31 May 2014 (opens in new tab) ... the history of civilization is the history of chemistry — the study of matter and its ...

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WebFeb 27, 2019 · In February 2019, C&EN first published this list of noteworthy chemists in honor of Black History Month. We started with six people whose work has shaped the discipline and whose discoveries have ...

WebChemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.. In the scope of its …

WebThe History of Soap - When Soap Became Popular? ... The big leap in commercial soap making was two discoveries by French chemists Nicholas Leblanc and Michael Chevreul around the turn of the 19th century. In 1791, Leblanc patented a method of making sodium carbonate or soda ash from commonly available salt. In 1811, Chevreul discovered the ...

WebHistory. Gustav Kirchhoff (left) and Robert Bunsen (right) Analytical chemistry has been important since the early days of chemistry, providing methods for determining which elements and chemicals are present in the object in question. ... Many analytical chemists focus on a single type of instrument. Academics tend to either focus on new ...

WebThe Hitchhiker's Guide to the Galaxy (sometimes referred to as HG2G, HHGTTG, H2G2, or tHGttG) is a comedy science fiction franchise created by Douglas Adams.Originally a 1978 radio comedy broadcast on BBC Radio 4, it was later adapted to other formats, including novels, stage shows, comic books, a 1981 TV series, a 1984 text-based …

WebOrganometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkali, alkaline earth, and transition metals, and sometimes broadened to include metalloids like boron, silicon, and selenium, as well. Aside from bonds to organyl …

WebWorcestershire sauce (/ ˈ w ʊ s t ər ʃ ər / WUUS-tər-shər), sometimes called Worcester sauce, is a fermented liquid condiment invented in the city of Worcester in Worcestershire, England, during the first half of the 19th century.The inventors were the pharmacists John Wheeley Lea and William Henry Perrins, who went on to form the company Lea & …