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English Wikipedia references for Udfa.net 1-7 of 7
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| 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 | |
| Hydronium In chemistry, hydronium is the common name for the aqueous cation H3O+, the simplest type of oxonium ion, produced by protonation of water. It is the positive ion present when an Arrhenius acid is dissolved in water, as Arrhenius acid molecules in solution give up a proton (a positive hydrogen ion, H+) to the surrounding water molecules (H2O).It is the presence of hydronium ion relative to hydroxide that determines a solution's pH. Hydronium | |
| Hydroxyl radical Hydroxyl in chemistry describes a molecule consisting of an oxygen atom and a hydrogen atom joined by a covalent bond. The neutral form is known as a hydroxyl radical and the singly-charged hydroxyl anion is called hydroxide. When its oxygen atom is covalently bonded within a larger molecule, the hydroxyl group either is, or otherwise is part of, a functional group (HO– or –OH) . Hydroxyl_radical | |
| Hydrogen isocyanide Hydrogen isocyanide is a chemical with molecular formula HNC (c.f. hydrogen cyanide, HCN). Its importance in the field of astrochemistry is linked to its ubiquity in the interstellar medium. Hydrogen_isocyanide | |
| Interstellar formaldehyde Interstellar formaldehyde (a topic relevant to astrochemistry) was first discovered in 1969 by L. Snyder et al.. using the National Radio Astronomy Observatory. Formaldehyde (H2CO) was detected by means of the 111 - 110 ground state rotational transition at 4830 MHz . Interstellar_formaldehyde | |
| HCNH+ +, also known as protonated hydrogen cyanide, is a molecular ion of astrophysical interest. HCNH+ | |
| NH (interstellar) NH_(interstellar) |
