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Seznam.cz. Seznam.cz (or Seznam, list in Czech) is a web portal and search engine in the Czech Republic. Founded in 1996 by Ivo Lukačovič in Prague as the first web portal in the Czech Republic. Seznam started with a search engine and an internet version of yellow pages. Today, Seznam runs almost 30 different web services and associated brands.
Sodium sulfide is a chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O.Both the anhydrous and the hydrated salts in pure crystalline form are colorless solids, although technical grades of sodium sulfide are generally yellow to brick red owing to the presence of polysulfides and commonly supplied as a crystalline mass, in flake form, or as a fused solid.
Sodium aluminate is an inorganic chemical that is used as an effective source of aluminium hydroxide for many industrial and technical applications. Pure sodium aluminate (anhydrous) is a white crystalline solid having a formula variously given as NaAlO 2, NaAl (OH) 4 (hydrated), [3] Na 2 O·Al 2 O 3, or Na 2 Al 2 O 4.
Sodium carbonate decahydrate (Na 2 CO 3 ·10H 2 O), also known as washing soda, is the most common hydrate of sodium carbonate containing 10 molecules of water of crystallization. Soda ash is dissolved in water and crystallized to get washing soda. It is one of the few metal carbonates that is soluble in water.
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115 03 Praha 1. On postal items being sent from abroad it is recommended to prepend the postal code with the ISO 3166-1 two-letter code of the country and a dash: Na Příkopě 28. CZ-115 03 Praha 1. the Czech Republic. On envelopes and postcards there are usually five rectangular boxes below the address field for the postal code digits.
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Qalaherriaq (c. 1834 – 1856) was an Inughuit hunter from Cape York in northwestern Greenland. Born around 1834 and baptized Erasmus Augustine Kallihirua, he was taken aboard the British barque HMS Assistance in 1850 as an interpreter during the search for Franklin's lost expedition. He guided the ship to Wolstenholme Fjord to investigate ...