| Ammonia Ammonia is a compound of nitrogen and hydrogen with the formula NH3. It is normally encountered as a gas with a characteristic pungent odor. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to foodstuffs and fertilizers. Ammonia
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| Complex (chemistry) In chemistry, a complex, also called a "coordination compound" or "metal complex", is a structure consisting of a central atom or molecule connected to surrounding atoms or molecules. Originally, a complex implied a reversible association of molecules, atoms, or ions through weak chemical bonds. As applied to coordination chemistry, this meaning has evolved. Some metal complexes are formed virtually irreversibly and many are bound together by bonds that are quite strong. Complex_(chemistry)
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| Sikh Sikh (English'Sikhism. The term has its origin in the Sanskrit term ''According to Article I of the "Rehat Maryada" (the Sikh code of conduct & conventions), a Sikh is defined as "any human being who faithfully believes in One Immortal Being; ten Gurus, from Guru Nanak Dev to Sri Guru Gobind Singh; the Sri Guru Granth Sahib; the utterances and teachings of the ten Gurus and the baptism bequeathed by the tenth Guru; and who does not owe allegiance to any other religion". Sikh
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| Dmitri Mendeleev Dmitri Ivanovich Mendeleyev (sometimes romanized Mendeleev or Mendeleef; ) ( Russian chemist and inventor. He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered. Dmitri_Mendeleev
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| Van der Waals force The van der Waals equation is an equation of state that can be derived from a special form of the potential between a pair of molecules (hard-sphere repulsion and R-6 van der Waals attraction).In physical chemistry, the van der Waals force (or van der Waals interaction), named after Dutch scientist Johannes Diderik van der Waals, is the attractive or repulsive force between molecules (or between parts of the same molecule) other than those due to covalent bonds or to the electrostatic interaction of ions with one another or with neutral molecules. Van_der_Waals_force
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| Boggle Boggle is a word game designed by Allan Turoff and trademarked by Parker Brothers and Hasbro. The game is played using a grid of lettered dice, in which players attempt to find words in sequences of adjacent letters. Boggle
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| Passivation Passivation is the process of making a material "passive" in relation to another material prior to using the materials together. For example, prior to storing hydrogen peroxide in an aluminium container, the container can be passivated by rinsing it with a dilute solution of nitric acid and peroxide alternating with deionized water. Passivation
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| Pudding River Pudding_River
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| Dog agility Dog_agility
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| History of the periodic table history of the periodic table reflects over a century of growth in the understanding of chemical properties, and culminates with the publication of the first actual periodic table by Dmitri Mendeleev in 1869. While Mendeleev built upon earlier discoveries by such scientists as Antoine-Laurent de Lavoisier, the Russian scientist is generally given sole credit for development of the actual periodic table itself. History_of_the_periodic_table
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| Batrachotoxin Batrachotoxins (BTX) are extremely potent cardiotoxic and neurotoxic steroidal alkaloids found in certain species of frogs (poison dart frog), Melyridae beetles, and birds (Pitohui, Ifrita kowaldi). Batrachotoxin
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| Usher syndrome Usher syndrome (sometimes referred to as "Usher's syndrome") is a relatively rare genetic disorder that is a leading cause of deafblindness and that is associated with a mutation in any one of 10 genes. Other names for Usher syndrome include Hallgren syndrome, Usher-Hallgren syndrome, rp-dysacusis syndrome and dystrophia retinae dysacusis syndrome. Usher_syndrome
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| University of Washington Talk:University_of_Washington
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| Western Oregon University Western Oregon University (WOU) is a public liberal arts college located in Monmouth, Oregon, United States. Originally established in 1856 by Oregon pioneers as Monmouth University, a private college, and later merged with another private institution, Bethel College, to become Christian College. It became a state college called Oregon State Normal School in 1882. Subsequent names include Oregon Normal School, Oregon College of Education, and Western Oregon State College. Western_Oregon_University
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| Ludwig van Beethoven's religious beliefs The role of religious belief in the work of the celebrated composer Ludwig van Beethoven is a matter of disagreement among scholars. Beethoven was born and raised a Roman Catholic, and he composed many religious works, among them the Mass in C and the Missa Solemnis. Ludwig_van_Beethoven's_religious_beliefs
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| Robert W. Straub Robert William "Bob" Straub (May 6, 1920 - November 27, 2002), was an American politician and businessman in the state of Oregon. A native of California, he settled in Eugene, Oregon, where he entered politics. A Democratic politician, he served in the Oregon State Senate, as the Oregon State Treasurer, and one term as Governor of Oregon from 1975 to 1979. Like his perennial opponent for governor, Tom McCall, he was a noted environmentalist. Robert_W._Straub
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| Ludwig van Beethoven's religious beliefs Talk:Ludwig_van_Beethoven's_religious_beliefs
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| Dichlorodifluoromethane Dichlorodifluoromethane (R-12), usually sold under the brand name Freon-12, is a chlorofluorocarbon halomethane (CFC), used as a refrigerant and aerosol spray propellant. Complying with the Montreal Protocol, its manufacture was banned in the United States along with many other countries in 1994 due to concerns about damage to the ozone layer. It is soluble in many organic solvents. Dichlorodifluoromethane
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| 0.999... In mathematics, the repeating decimal 0.999… which may also be written as or denotes a real number equal to one. In other words0.999… and 1 actually represent the same real number. This equality has long been accepted by professional mathematicians and taught in textbooks. Proofs have been formulated with varying degrees of mathematical rigour, taking into account preferred development of the real numbers, background assumptions, historical context, and target audience. 0.999...
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| Pourbaix diagram chemistry, a Pourbaix diagram, also known as a potential/pH diagram, maps out possible stable (equilibrium) phases of an aqueous electrochemical system. Predominant ion boundaries are represented by lines. As such a Pourbaix diagram can be read much like a standard phase diagram with a different set of axes.The diagrams are named after Marcel Pourbaix (1904–1998), the Russian-born chemist who invented them. Pourbaix_diagram
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