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Chemistry, 04.05.2021 19:20 oofoofoof1

O nióbio é um metal encontrado em jazidas naturais, principalmente na firma de óxidos. Em uma jazida que contenha nióbio com número de oxidação +5, a formula do óxido predominante desse metal corresponde a:

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O nióbio é um metal encontrado em jazidas naturais, principalmente na firma de óxidos. Em uma jazida...
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