bairespatty4 bairespatty4

23-10-2019
Chemistry

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which formula contains two non- metals?

BaO
NaBr
KI
Si O2

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rachel2k rachel2k

23-10-2019

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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