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pentavalent AGG CHIM

pentavalent CHIM

pentavalent

Esempi monolingue (non verificati dalla Redazione di PONS)

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The pentavalent oxidation state of americium was first observed in 1951.
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This species is known as pentavalent uranyl cation and has a low stability due to the disproportionation into tetravalent and hexavalent uranium species.
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Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral.
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Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony.
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The traditional treatment is with pentavalent antimonials such as sodium stibogluconate and meglumine antimoniate.
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The presence of a pentavalent silicon is not needed and kinetic analysis has shown that this reaction has first order dependence on silonate concentration.
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