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This is the pronunciation key for IPA transcriptions of Polish on Wikipedia. It provides a set of symbols to represent the pronunciation of Polish in Wikipedia articles, and example words that illustrate the sounds that correspond to them.
Vanadium(V) oxide serves the crucial purpose of catalysing the mildly exothermic oxidation of sulfur dioxide to sulfur trioxide by air in the contact process: 2 SO 2 + O 2 ⇌ 2 SO 3 The discovery of this simple reaction, for which V 2 O 5 is the most effective catalyst, allowed sulfuric acid to become the cheap commodity chemical it is today.
In western and southern Poland, final obstruents are voiced (voicing pronunciation) if the following word starts with a sonorant (here, for example, the /t/ in brat ojca 'father's brother' would be pronounced as [d]). On the other hand, they are voiceless (devoicing pronunciation) in eastern and northern Poland (/t/ is pronounced [t]).
Vanadium oxide mainly refers to: Vanadium(II) oxide (vanadium monoxide), VO; Vanadium(III) oxide (vanadium sesquioxide or trioxide), V 2 O 3; Vanadium(IV) oxide (vanadium dioxide), VO 2; Vanadium(V) oxide (vanadium pentoxide), V 2 O 5; Various other distinct phases include: Phases with the general formula V n O 2n+1 exist between V 2 O 5 and VO 2.
Vanadium(II) oxide is the inorganic compound with the idealized formula VO. It is one of the several binary vanadium oxides. It adopts a distorted NaCl structure and contains weak V−V metal to metal bonds. VO is a semiconductor owing to delocalisation of electrons in the t 2g orbitals.
The Polish alphabet (Polish: alfabet polski, abecadło) is the script of the Polish language, the basis for the Polish system of orthography. It is based on the Latin alphabet but includes certain letters (9) with diacritics : the acute accent – kreska : ć, ń, ó, ś, ź ; the overdot – kropka : ż ; the tail or ogonek – ą, ę ; and ...
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Vanadium(IV) oxide or vanadium dioxide is an inorganic compound with the formula VO 2.It is a dark blue solid. Vanadium(IV) dioxide is amphoteric, dissolving in non-oxidising acids to give the blue vanadyl ion, [VO] 2+ and in alkali to give the brown [V 4 O 9] 2− ion, or at high pH [VO 4] 4−. [4]