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Mülheim an der Ruhr
(Encyclopedia)Mülheim an der Ruhr mülˈhīm än dĕr ro͞or [key] or Mülheim, city (1994 pop. 177,175), North Rhine–Westphalia, W Germany, on the Ruhr River. It is an industrial center of the Ruhr district and...Marburg an der Lahn
(Encyclopedia)Marburg an der Lahn märˈbo͝ork än dĕr län [key] or Marburg, city (1994 pop. 76,582), Hesse, Germany, on the Lahn River. It is chiefly known for its Protestant university, founded in 1527 by Phil...Landsberg an der Warthe
(Encyclopedia)Landsberg an der Warthe: see Gorzów Wielkopolski, Poland. ...trisection of an angle
(Encyclopedia)trisection of an angle: see geometric problems of antiquity. ...acid anhydride
(Encyclopedia)acid anhydride ănhīˈdrīd, –drəd [key], chemical compound that reacts with water to form an acid (see acids and bases). Anhydrides of inorganic acids are usually oxides of nonmetallic elements. ...chloride
(Encyclopedia)chloride klōrˈīd, klôrˈ– [key], chemical compound containing chlorine. Most chlorides are salts that are formed either by direct union of chlorine with a metal or by reaction of hydrochloric ac...isoprene
(Encyclopedia)isoprene or 2-methyl-1,3-butadiene īˈsəprēn, byo͞oˌtədīˈēn [key], colorless liquid organic compound. It is a hydrocarbon, and is insoluble in water but soluble in many organic solvents; it b...carbon disulfide
(Encyclopedia)carbon disulfide, CS2, liquid organic compound; it is colorless, foul-smelling, flammable, and poisonous. It can be prepared by direct reaction of carbon, e.g., as charcoal, with sulfur. It is a widel...aniline
(Encyclopedia)aniline ănˈəlĭn [key], C6H5NH2, colorless, oily, basic liquid organic compound; chemically, a primary aromatic amine whose molecule is formed by replacing one hydrogen atom of a benzene molecule w...silver nitrate
(Encyclopedia)silver nitrate nīˈtrāt [key], chemical compound, AgNO3, a colorless crystalline material that is very soluble in water. The most important compound of silver, it is used in the preparation of silve...Browse by Subject
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