standard distillation test
31Condenser (laboratory) — Two different condensers are seen here: an air cooled fractionating column on left, and a Liebig condenser on the right In a laboratory a condenser is a piece of laboratory glassware used to cool hot vapors or liquids. [1] A condenser usually… …
32nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
33Cyanide — This article is about the class of chemical compounds. For other uses, see Cyanide (disambiguation). The cyanide ion, CN−. From the top: 1. Valence bond structure 2. Space filling model 3. Electrostatic potential surface 4. Carbon lone pair… …
34metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
35GÉNIE CHIMIQUE — L’industrialisation de la réaction chimique consiste à mettre en œuvre celle ci dans les conditions les plus économiques qui soient et en travaillant, le plus souvent, sur des masses considérables. C’est au génie chimique de définir les… …
36Avicenna — Infobox Muslim scholars | notability = Persian scholar| era = Islamic golden age| color = #cef2e0 | | image caption = | | name = transl|ar|Abū ʿAlī al Ḥusayn ibn ʿAbd Allāh ibn Sīnā Balkhi (Avicenna)| title= Sharaf al Mulk, Hujjat al Haq, Sheikh… …
37Noble gas — Group 18 Period 1 2 He 2 …
38Petroleum — For other uses, see Petroleum (disambiguation). Proven world oil reserves, 2009 …
39Gasoline — This article is about the fuel and industrial solvent. For other uses, see Gasoline (disambiguation). Petrol redirects here. For other uses, see Petrol (disambiguation). For the bird group, see petrel. A jar containing gasoline …
40Islamic contributions to Medieval Europe — Christian and Muslim playing chess in al Andalus, from The Book of Games of Alfonso X, el Sabio, c. 1285. The game of chess originated in India, but was transmitted to Europe by the Islamic world.[1] Islamic contributions to Medieval Europe …
