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ChemistryChemistry
8 February, 03:13

Which formula contains two non - metals?

BaO

NaBr

KI

Si O2

+2
Answers (1)
  1. 8 February, 03:37
    0
    SiO2 is the only possible choice because the other formulas contain metals. how do we know this? because the other formulas contain elements located on the left of the "staircase" on the periodic table that separates metals from non-metals.
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