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Prafulla Chandra said that it was a new chapter in life that started with the unanticipated discovery of mercurous nitrite (NOT mercurous nitrate). [14] Prafulla Chandra, in 1896, noticed the formation of a yellow crystalline solid with the reaction of excess mercury and dilute nitric acid .
The green plaque at Riding House Street, London, commemorates where Equiano lived and published his narrative.. The Interesting Narrative of the Life of Olaudah Equiano, Or Gustavus Vassa, The African, first published in 1789 in London, [1] is the autobiography of Olaudah Equiano (c. 1745 – 31 March 1797), an African from what is now Nigeria who was enslaved in childhood and eventually ...
Chemistry. The 1871 periodic table constructed by Dmitri Mendeleev. The periodic table is one of the most potent icons in science, lying at the core of chemistry and embodying the most fundamental principles of the field. The history of chemistry represents a time span from ancient history to the present.
Methylidyne radical. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Methylidyne, or (unsubstituted) carbyne, is an organic compound whose molecule consists of a single hydrogen atom bonded to a carbon atom. It is the parent compound of the carbynes, which can be seen as obtained ...
The 'rule of thumb' that the rate of chemical reactions doubles for every 10 °C temperature rise is a common misconception. This may have been generalized from the special case of biological systems, where the α (temperature coefficient) is often between 1.5 and 2.5. The kinetics of rapid reactions can be studied with the temperature jump method.
In organic chemistry and organometallic chemistry, carbon–hydrogen bond activation (C−H activation) is a type of organic reaction in which a carbon–hydrogen bond is cleaved and replaced with a C−X bond (X ≠ H is typically a main group element, like carbon, oxygen, or nitrogen). Some authors further restrict the term C–H activation ...
Alpha Kappa Alpha Sorority, Inc. (ΑΚΑ) is the first intercollegiate historically African American sorority. [3] The sorority was founded on January 15, 1908, at the historically black Howard University in Washington, D.C., by a group of sixteen students led by Ethel Hedgemon Lyle.
Lessons in Chemistry is a novel by Bonnie Garmus. Published by Doubleday in April 2022, it is Garmus's debut novel. It tells the story of Elizabeth Zott, who becomes a beloved cooking show host in 1960s Southern California after being fired as a chemist four years earlier. [4] It was adapted into an Apple TV+ miniseries that debuted on 13 ...