concise course in chemistry

См. также в других словарях:

• chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …   Universalium

• Entropy — This article is about entropy in thermodynamics. For entropy in information theory, see Entropy (information theory). For a comparison of entropy in information theory with entropy in thermodynamics, see Entropy in thermodynamics and information… …   Wikipedia

• Covariance matrix — A bivariate Gaussian probability density function centered at (0,0), with covariance matrix [ 1.00, .50 ; .50, 1.00 ] …   Wikipedia

• encyclopaedia — Reference work that contains information on all branches of knowledge or that treats a particular branch of knowledge comprehensively. It is self contained and explains subjects in greater detail than a dictionary. It differs from an almanac in… …   Universalium

• Friedrich Accum — Infobox Scientist name = Friedrich Accum image size = 250px caption = From the European Magazine (1820) engraving by James Thomson. birth date = birth date|mf=yes|1769|03|29 birth place = Bückeburg, Schaumburg Lippe death date = death date and… …   Wikipedia

• Europe, history of — Introduction       history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …   Universalium

• Friedrich Accum — (1769−1838). Erstmalig in der Zeitschrift European Magazine aus dem Jahr 1820 abgedruckter Stich von James Thomson. Friedrich Christian Accum (* 29. März 1769 in Bückeburg; † 28. Juni 1838 in Berlin) war ein deutscher Chemiker, dessen Hau …   Deutsch Wikipedia

• Friedrich Christian Accum — Friedrich Accum (1769−1838). Erstmalig in der Zeitschrift European Magazine aus dem Jahr 1820 abgedruckter Stich von James Thomson. Friedrich Christian Accum (* 29. März 1769 in Bückeburg; † 28. Juni 1838 in Berlin) war ein deutscher Chemiker …   Deutsch Wikipedia

• Metalloid —   13 14 15 16 17   2  B Boron …   Wikipedia

• List of common misconceptions — This incomplete list is not intended to be exhaustive. This is a list of current, widely held, false ideas and beliefs about notable topics which have been reported by reliable sources from around the world. Each has been discussed in published… …   Wikipedia

• Friedrich Accum — Portrait par James Thomson. Friedrich Christian Accum ou Frederick Accum, né à Bückeburg le 29 mars 1769 et mort à Berlin le 28 juin 1838, est un chimiste allemand. Ses principaux apports ont concerné l …   Wikipédia en Français