Question

Which formula contains two non-metals?
SiO2
Bao
KI
NaBr​

Answer 1

SiO2

Step-by-step explanation:

1. I took the test and got it right

2. Silicon(Si) is not a metal nor a metal, it is a metalloid

3. Oxygen(O) is a reactive nonmetal

Answer 2

SiO2 contains two non metals.

Step-by-step explanation:

barium potassium and sodium are all metals, oxygen is non metal

while silicon is neither metal nor non metal it is a metalloid therefore the best option would be SiO2