Search results for "History of chemistry" - New World Encyclopedia
From New World Encyclopedia
- concentrations above 5.6 percent. A solution of hydrogen cyanide in water is ... used by the Nazi regime for the mass murder of Jews in the gas chambers of ...12 KB (1,685 words) - 13:19, 4 February 2023
- In thermodynamics and molecular chemistry, the enthalpy or heat content ... The term enthalpy was composed of the prefix en-, meaning to "put ...18 KB (2,941 words) - 18:57, 13 February 2024
- silvery white metallic element and a member of the lanthanide series of chemical ... and solvent extraction, or by the reduction of its anhydrous fluoride with ...13 KB (1,750 words) - 07:39, 15 April 2024
- This chemical is used mostly as an intermediate in the production ... A minor but significant use of ethylene oxide is for the sterilization ...12 KB (1,739 words) - 04:37, 22 March 2024
- The term acid rain is commonly used to mean the deposition of acidic ... Rain acquires additional acidity through the reaction of air pollutants ...13 KB (1,971 words) - 07:41, 14 June 2023
- quot; element used in the production of the first high-temperature ... were found to have a relatively high content of yttrium. ...12 KB (1,634 words) - 21:34, 4 June 2023
- explosive and is used in the manufacture of dynamite, which in turn is ... == History == Nitroglycerin was discovered by chemist Ascanio Sobrero ...11 KB (1,527 words) - 02:27, 16 November 2022
- a silvery metallic element that is a member of the lanthanide series of chemical ... Cerium, its alloys, and its compounds are valuable for a variety of ...15 KB (2,039 words) - 23:59, 3 December 2023
- minerals) and have a relatively low content of silica. The Earth's mantle ... Ultramafic rocks are generally composed of more than 90 percent mafic ...7 KB (892 words) - 01:30, 3 May 2023
- The atomic mass (ma) is the mass of a single atom, when the atom is ... In the history of chemistry, the first scientists to determine atomic ...13 KB (2,025 words) - 06:26, 21 August 2023
- 2, 1927) was a Swedish chemist and one of the founders of the science ... district near Uppsala, Sweden, the son of Svante Gustav and Carolina ...15 KB (2,260 words) - 00:32, 27 February 2023
- armaments manufacturer, and the inventor of dynamite. He owned Bofors, ... * Von Meyer, E. 1906. A History of Chemistry. London: MacMillan and Co. ...8 KB (1,208 words) - 18:04, 20 July 2023
- thought and work extended across physical chemistry, economics, and philosophy ... made significant contributions in the area of physical chemistry. Based on ...17 KB (2,500 words) - 10:38, 10 March 2023
- by isolating and identifying a host of new chemical elements, and ... * Von Meyer, E. 1906. A History of Chemistry. London: MacMillan and Co. ...12 KB (1,863 words) - 20:56, 9 February 2024
- specifically an aryl amine, consisting of a phenyl group attached to ... First, benzene is heated with a concentrated mixture of nitric acid ...13 KB (1,817 words) - 06:09, 28 July 2023
- best known as the primary ingredient of mothballs. Naphthalene is ... Trace amounts of naphthalene are produced by magnolias and certain ...13 KB (1,879 words) - 01:21, 11 November 2022
- the most universally recognized example of chirality: The left hand is ... In the context of chemistry, chirality usually refers to molecules ...24 KB (3,570 words) - 17:06, 10 December 2023
- of the actinide series. It is produced synthetically by bombarding ... Two isotopes of curium (curium-242 and curium-244) can be produced ...10 KB (1,354 words) - 06:46, 12 January 2024
- when released into air, due to refraction of light. At low concentrations ... (1790-1868) in 1812, by exposing a mixture of carbon monoxide and chlorine ...10 KB (1,416 words) - 22:44, 28 March 2023
- rare metal. Obtained as a byproduct of molybdenum refinement, it is ... This mineral, however, is not an economically viable source of the element. ...10 KB (1,384 words) - 20:01, 8 December 2022
