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In fact, HeH + is the strongest known acid, with a proton affinity of 177.8 kJ/mol. Other helium-hydrogen ions. Additional helium atoms can attach to HeH + to form larger clusters such as He 2 H +, He 3 H +, He 4 H +, He 5 H + and He 6 H +. The dihelium hydride cation, He 2 H +, is formed by the reaction of dihelium cation with molecular ...
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An extranet is a controlled private network that allows access to partners, vendors and suppliers or an authorized set of customers – normally to a subset of the information accessible from an organization's intranet. An extranet is similar to a DMZ in that it provides access to needed services for authorized parties, without granting access ...
Helium (from Greek: ἥλιος, romanized : helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
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Heh's female counterpart and consort was known as Hauhet, which is simply the feminine form of his name. [1] Like the other concepts in the Ogdoad, his male form was often depicted as a frog , or a frog-headed human, and his female form as a snake or snake-headed human.
Hantzsch ester refers to an organic compound with the formula HN (MeC=C (CO 2 Et)) 2 CH 2 where Me = methyl (CH 3) and Et = ethyl (C 2 H 5 ). It is a light yellow solid. The compound is an example of a 1,4- dihydropyridine. It is named after Arthur Rudolf Hantzsch who described its synthesis in 1881.
He is the fifth letter of the Semitic abjads, including Phoenician hē 𐤄, Hebrew hē ה, Aramaic hē 𐡄, Syriac hē ܗ, and Arabic hāʾ ه. Its sound value is the voiceless glottal fricative ([h]).