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Toluene (or methylbenzene) is a common chemical found in chemistry laboratories. An alkylbenzene is a chemical compound that contains a monocyclic aromatic ring attaching to one or more saturated hydrocarbon chains. [1] Alkylbenzenes are derivatives of benzene, in which one or more hydrogen atoms are replaced by alkyl groups.
Toluene is also found in cigarette smoke and car exhaust. If not in contact with air, toluene can remain unchanged in soil or water for a long time. [39] Toluene is a common solvent, e.g. for paints, paint thinners, silicone sealants, [40] many chemical reactants, rubber, printing ink, adhesives (glues), lacquers, leather tanners, and ...
Food chain in a Swedish lake. Osprey feed on northern pike, which in turn feed on perch which eat bleak which eat crustaceans.. A food chain is a linear network of links in a food web, often starting with an autotroph (such as grass or algae), also called a producer, and typically ending at an apex predator (such as grizzly bears or killer whales), detritivore (such as earthworms and woodlice ...
Most of the world’s top corporations have simple names. Steve Jobs named Apple while on a fruitarian diet, and found the name "fun, spirited and not intimidating." Plus, it came before Atari in ...
In many dialects, /r/ occurs only before a vowel; if you speak such a dialect, simply ignore /r/ in the pronunciation guides where you would not pronounce it, as in cart /kɑːrt/. In other dialects, /j/ ( y es) cannot occur after /t, d, n/ , etc., within the same syllable; if you speak such a dialect, then ignore the /j/ in transcriptions such ...
How to pronounce “Worcestershire” The sauce, while based on a recipe used in India, did not grow popular in the west until marketed by Lea and Perrins. As such, it has retained the name they ...
In addition to p-cymene, two less common geometric isomers are o-cymene, in which the alkyl groups are ortho-substituted, and m-cymene, in which they are meta-substituted.
Julien Miquel AIWS is a French YouTuber and winemaker, best known for making word pronunciation videos on his eponymous channel, with over 50,000 uploads as of May 2024. Several native speakers have criticised him for butchering the pronunciation of their languages.