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It is one of multiple publications by the company for Plus 7 dní, Šarm, and Báječná žena. [1] On 28 March 2008, Plus jeden deň protested against a law which it said would curb freedom of the press by publishing a paper with its front page blank except for a summary of criticisms of the proposed regulation. [3]
100 [1] One hundred Leopard 2A6 tanks were acquired used from the Netherlands between 2015 and 2019. [2] Leopard 2A4 Germany: Main battle tank: 100 [1] The vast majority of the Leopard 2A4 tanks were acquired used from Germany between 2002 and 2004; more were purchased in 2009. Some of the existing 2A4s are equipped with Israeli made Urdan mine ...
Selenous acid (or selenious acid) is the chemical compound with the formula H 2 SeO 3. Structurally, it is more accurately described by O=Se(OH) 2. It is the principal oxoacid of selenium; the other being selenic acid.
ISO 639 is a standardized nomenclature used to classify languages. [ 1] Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). [ 2] Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural ...
H 2 Se adopts a bent structure with a H−Se−H bond angle of 91° [citation needed]. Consistent with this structure, three IR-active vibrational bands are observed: 2358, 2345, and 1034 cm −1. [6] The properties of H 2 S and H 2 Se are similar, although the selenide is more acidic with pK a = 3.89 and the second pK a = 11, [6] or 15.05 ± 0 ...
The two electrons (corresponding to one bond) in a B−H−B bonding molecular orbital are spread out across three internuclear spaces. [1] In diborane (B 2 H 6), there are two such 3c-2e bonds: two H atoms bridge the two B atoms, leaving two additional H atoms in ordinary B−H bonds on each B. As a result, the molecule achieves stability ...
Sodium–hydrogen antiporter. The sodium–hydrogen antiporter or sodium–proton exchanger ( Na+/H+ exchanger or NHX) is a membrane protein that transports Na + into the cell, and H + out of the cell ( antiport ). Na + /H + antiporter 1. Identifiers. Symbol.
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.