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Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula CO(NH2)2. This amide has two amino groups (–NH2) joined by a carbonyl functional group (–C(=O)–). It is thus the simplest amide of carbamic acid. Urea serves an important role in the cellular metabolism of nitrogen ...
Isopropyl alcohol ( IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable organic compound with a pungent alcoholic odor. [9] Isopropyl alcohol, an organic polar molecule, is miscible in water, ethanol, and chloroform, demonstrating its ability to dissolve a wide range of substances including ethyl ...
Ludwigsburg Palace is a 452-room complex of 18 buildings in Ludwigsburg, Baden-Württemberg, Germany. It is the largest palatial estate in the country and has been called the " Versailles of Swabia ". Eberhard Louis, Duke of Württemberg, began construction of the palace in 1704. Charles Eugene, the son of his successor, completed it and ...
Five are considered to be nuclear-weapon states ( NWS) under the terms of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). In order of acquisition of nuclear weapons, these are the United States, Russia (the successor of the former Soviet Union ), the United Kingdom, France, and China. Of these, the three NATO members, the United ...
Ethanol is the oldest known sedative, used as an oral general anesthetic during surgery in ancient Mesopotamia and in medieval times. [16] [17] Mild intoxication starts at a blood alcohol concentration of 0.03-0.05 % and induces anesthetic coma at 0.4%. [25] However, this use carried the high risk of deadly alcohol intoxication and pulmonary ...
Chlorine is a chemical element; it has symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent ...
Grandparents' Day. Mother's Day is a celebration honoring the mother of the family or individual, as well as motherhood, maternal bonds, and the influence of mothers in society. It is celebrated on different days in many parts of the world, most commonly in March or May. It complements similar celebrations honoring family members, such as ...
