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118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell.
World leaders are meeting in Paris this month in what amounts to a last-ditch effort to avert the worst ravages of climate change. Climatologists now say that the best case scenario — assuming immediate and dramatic emissions curbs — is that planetary surface temperatures will increase by at least 2 degrees Celsius in the coming decades.
Yandex Search has the largest market share of any search engine from Europe and the Commonwealth of Independent States, is the third largest search engine worldwide after Google and Bing, [11] and had 60% of the Russian search market as well as being the leading search and ride-sharing in Russia as of December 2021. [8]
The Caproni Ca.60 Transaereo, often referred to as the Noviplano (nine-wing) or Capronissimo, was the prototype of a large nine-wing flying boat intended to become a 100-passenger transatlantic airliner. [N 2] It featured eight engines and three sets of triple wings.
Imperial Germany built up the world's largest chemical industry, the production of German chemical industry was 60% higher than that of the United States. [60] In 1913, these eight firms produced almost 90% of the world supply of dyestuffs and sold about 80% of their production abroad.
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