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15 hours ago · The most common compound, titanium dioxide, is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl 4), a component of smoke screens and catalysts; and titanium trichloride (TiCl 3), which is used as a catalyst in the production of polypropylene.
15 hours ago · Etymology The English word sun developed from Old English sunne. Cognates appear in other Germanic languages, including West Frisian sinne, Dutch zon, Low German Sünn, Standard German Sonne, Bavarian Sunna, Old Norse sunna, and Gothic sunnō. All these words stem from Proto-Germanic * sunnōn. This is ultimately related to the word for sun in other branches of the Indo-European language ...
15 hours ago · Definition and applicable elements Unless otherwise noted, this article describes the most stable form of an element in ambient conditions. [b] While arsenic (here sealed in a container to prevent tarnishing) has a shiny appearance and is a reasonable conductor of heat and electricity, it is soft and brittle and its chemistry is predominately nonmetallic. Nonmetallic chemical elements are ...
15 hours ago · Gallium is a chemical element; it has symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, [10] gallium is in group 13 of the periodic table and is similar to the other metals of the group ( aluminium, indium, and thallium ). Elemental gallium is a relatively soft, silvery metal at standard ...
- ~68
- M 2 O 3
- 5.9 g/cm 3
- Low
15 hours ago · Tagalog. toyo. Soy sauce (sometimes called soya sauce in British English [1]) is a liquid condiment of Chinese origin, traditionally made from a fermented paste of soybeans, roasted grain, brine, and Aspergillus oryzae or Aspergillus sojae molds. [2] It is recognized for its pronounced umami taste.
15 hours ago · Khat or qat, Catha edulis ( Amharic: ጫት ch’at; Oromo: Jimaa, Somali: qaad, jaat, khaad or khat, Arabic: القات al-qāt, Swahili: miraa, muguka, jaba or aluta) is a flowering plant native to eastern and southeastern Africa. [2] It has a history of cultivation originating in the Harar area (present day eastern Ethiopia) and subsequently ...
15 hours ago · Definition. Vitamin A is a fat-soluble vitamin, a category that also includes vitamins D, E and K. The vitamin encompasses several chemically related naturally occurring compounds or metabolites, i.e., vitamers, that all contain a β-ionone ring. [4]
