polycyclic aromatic hydrocarbons
41Zethrene — IUPAC name …
42Allan Hills 84001 — Meteorite fragment ALH 84001 Type Achondrite Class Martian meteorite Group ALH …
43Non-Kekulé molecule — Examples of non Kekulé (a) polyenes, (b) quinodimethanes, and (c) polynuclear aromatics A non Kekulé molecule is a conjugated hydrocarbon that cannot be assigned classical Kekulé structures. Since non Kekulé molecules have two or more formal… …
44chemical compound — Introduction any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element). All the matter in the universe is composed of the atoms of more than 100 different chemical elements …
45Mutagenesis — (pronounced /mjuːtəˈdʒɛnɪsɪs/) is a process by which the genetic information of an organism is changed in a stable manner, resulting in a mutation. It may occur spontaneously in nature, or as a result of exposure to mutagens. It can also be… …
46Incense — Burning incense Incense (from Latin: incendere, to burn )[1] is composed of aromatic biotic materials, which release fragrant smoke when burned. The term incense refers to the substance itself, rather than to the odor that it produces. It is used …
47ГОСТ Р ЕН 12916-2008: Нефтепродукты. Определение типов ароматических углеводородов в средних дистиллятах. Метод высокоэффективной жидкостной хроматографии с детектированием по коэффициенту рефракции — Терминология ГОСТ Р ЕН 12916 2008: Нефтепродукты. Определение типов ароматических углеводородов в средних дистиллятах. Метод высокоэффективной жидкостной хроматографии с детектированием по коэффициенту рефракции: 3.3 диароматические углеводороды… …
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48ALH84001 — Meteorite Name= Allan Hills 84001 Image caption= Meteorite fragment ALH 84001 Image width= Type= Achondrite Class= Martian meteorite Group= ALH 84001 Structural classification= Composition= Shock= B Weathering= A/B Country= Antarctica Region=… …
49Tetracene — For the initiating explosive, see tetrazene. Tetracene …
50Indan — Strukturformel Allgemeines Name Indan Andere Namen …