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• Mercury (element)
  ...alled for in attempts at the [[wiktionary:Transmutation|transmutation]] of base (or impure) metals into gold, which was the goal of many alchemists.<ref na ...mercury-fueled ion thruster developed by [[NASA Glenn Research Center|NASA Lewis]] and flown on the Space Electric Rocket Test "[[SERT-1]]" spacecraft launc
  69 KB (10,077 words) - 21:35, 20 September 2010
• Paracetamol
  ...more or less equally activated. The conjugation also greatly reduces the [[base (chemistry)|basicity]] of the oxygens and the nitrogen, while making the hy ...g=PA525 Acetaminophen]", in Nelson, Lewis H.; Flomenbaum, Neal; Goldfrank, Lewis R. ''et al.'' ''Goldfrank's toxicologic emergencies'', p. 525, New York: Mc
  54 KB (7,376 words) - 16:52, 27 September 2010
• Cicuta
  ...lly only ''C. maculata'' has the purple stripes or spots). Attached to the base of the stem is a [[tuberous root]] with thickened [[rootstock]]s. The roots ...accessdate =2008-08-03 }}</ref> while water parsnip has both bracts at the base of flowers and also at the main flower head.<ref>{{cite web | last = | fir
  29 KB (4,114 words) - 12:26, 7 July 2010
• Robinia pseudoacacia
  ...1.5–3&nbsp;cm broad. Each leaf usually has a pair of short thorns at the base, 1–2&nbsp;mm long or absent on adult crown shoots, up to 2&nbsp;cm long o ...nched spines on the trunk, instead having the pairs of short thorns at the base of each leaf; the leaflets are also much broader.
  15 KB (2,259 words) - 12:28, 7 July 2010
• Coordination polymers
  ...nd form a [[coordination complex]] via a Lewis acid/ base relationship ([[lewis acids and bases]]). Coordination polymers are formed when a ligand has the ...i conformation.]] Ligands and metal cations tend to follow hard soft acid base theory ([[HSAB]]) trends. This means that larger, more polarizable soft me
  23 KB (3,302 words) - 10:11, 20 September 2010
• Bamboo
  # A similar method is undertaken but with the base of the culm standing in fresh water, either in a large drum or stream to le ...=Square Bamboo |url=http://www.lewisbamboo.com/square.html |author = Roger Lewis |date= 1 July 2006 |publisher=LewisBamboo.com |accessdate=12 August 2009}}<
  47 KB (7,158 words) - 10:22, 20 September 2010
• Concrete
  ...A Toolbox for Watershed Managers, Scientists, and Engineers|publisher=CRC/Lewis Publishers|location=New York|year=2001|isbn=0-87371-924-7|url=http://unix.e ...he joint reduces sub-grade softening, slows pumping and erosion of the sub-base fines, and may limit dowel-bar corrosion caused by de-icing chemicals.<ref>
  63 KB (9,167 words) - 10:23, 20 September 2010
• Ethylene oxide
  ...tz mistakenly assumed that ethylene oxide has the properties of an organic base. This delusion lasted until 1896 when [[Georg Bredig]] found that ethylene ...c acids ([[perchloric acid|HClO₄]], [[hydrochloric acid|HCl]]), Lewis acids ([[Tin(IV) chloride|SnCl₄]], [[boron trifluoride|BF<sub>3<
  82 KB (11,709 words) - 21:31, 20 September 2010
• Occupational safety and health
  ...at the shoulder and his leg broken. No compensation paid. Photograph by [[Lewis Hine]].]] **[[Base]]s
  27 KB (3,793 words) - 21:34, 20 September 2010
• Behavior-based safety
  ...''Working Safe: How to help people actively care for health and safety''. Lewis Publishers</ref> The goal should be small gains over and over again; contin ...results that he derived by evaluating the accidents from an extensive data base compiled by the insurance industry.<ref name="Al-Hemoud"/> He came to the c
  19 KB (2,781 words) - 21:35, 20 September 2010
• International System of Units
  ...y a system of [[units of measurement]] devised around seven [[SI base unit|base units]] and the convenience of the number ten. It is the world's most widel ...tween the definition of a unit and its realisation. The definition of each base unit of the SI is carefully drawn up so that it is unique and provides a so
  37 KB (5,456 words) - 21:37, 20 September 2010
• Hexafluoroacetylacetone
  ...ate base, often called Hfac^-, exhibit enhanced volatility and [[Lewis acid]]ity relative to analogous complexes derived from [[acetylacetone]].
  2 KB (256 words) - 20:15, 21 September 2010
• Acetylacetone
  A second synthesis involves the base-catalyzed condensation of acetone and [[ethyl acetate]], followed by acidif ...C₅H₇O₂⁻, is the [[conjugate base]] of 2,4-pentanedione. It does not exist as a free ion in solution, but is
  16 KB (2,268 words) - 20:15, 21 September 2010
• Porphyrin
  A porphyrin without metal in its cavity is a ''free base''. Some iron-containing porphyrins are called [[heme]]s. Heme-containing [ ...ts, or [[p-toluenesulfonic acid]] can be used with a non-acidic solvent. [[Lewis acid]]s such as [[boron trifluoride]] etherate and ytterbium triflate have
  12 KB (1,605 words) - 20:15, 21 September 2010
• Hydrolysis
  ...lysis occurs when a [[salt (chemistry)|salt]] of a [[weak acid]] or [[weak base]] (or both) is dissolved in water. Water autoionizes into negative hydroxyl ...dded in order to achieve hydrolysis where water has no effect. The acid or base is considered a [[catalyst]]. They are meant to speed up the reaction, but
  14 KB (2,113 words) - 20:16, 21 September 2010
• Stability constants of complexes
  ...d that the formation of a metal complex with a ligand was a kind of [[acid-base]] equilibrium: there is competition for the ligand, L, between the metal io ...on during a [[titration]] of a mixture of M and HL with [[Base (chemistry)|base]], and knowing the [[acid dissociation constant]] of HL, the stability cons
  50 KB (7,450 words) - 20:16, 21 September 2010
• Oxyanion
  ...e reaction is an [[hydrolysis]] reaction, as a water molecule, acting as a base, is split. Further condensation may occur, particularly with anions of high ...[[silica]] reacts with a basic oxide, an acid-base reaction in the [[acid-base reaction#Lux-Flood definition|Lux-Flood]] sense.
  15 KB (2,364 words) - 20:16, 21 September 2010
• Acid dissociation constant
  ...nown as [[Dissociation (chemistry)|dissociation]] in the context of [[acid-base reactions]]. The equilibrium can be written symbolically as: ...at dissociates by splitting into A⁻, known as the [[conjugate base]] of the acid, and the [[hydrogen ion]] or [[proton]], H⁺, which
  76 KB (11,861 words) - 20:17, 21 September 2010
• Acid–base reaction
  ...lied to acid-base reactions for gaseous or liquid species, or when acid or base character may be somewhat less apparent. The first of these scientific conc == Historic acid-base theories ==
  29 KB (4,415 words) - 20:17, 21 September 2010
• Brønsted–Lowry acid-base theory
  ...[[hydrogen]] cation ([[proton]], H⁺), and a [[Base (chemistry)|base]] is a species with the ability to gain or "accept" a hydrogen cation (prot ...humb|upright=1.5|Water as both base and acid. One H₂O acts as a base and gains H⁺ to become H₃O⁺; the other H<s
  6 KB (987 words) - 20:17, 21 September 2010

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