asked 227k views
4 votes
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:

asked
User Diegogs
by
8.0k points

1 Answer

4 votes

Answer:

what

Step-by-step explanation:

answered
User RashFlash
by
8.2k points
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