I would say A because it’s the only one that doesn’t conduct electricity. Ionic compounds conduct electricity, and covalent compounds do not.
You just need to convert it into moles per Liter (mol/L).
0.0815mol / 0.550L = 0.148mol/L
159.3 g
mol= mass (g)/ molecular weight (g/mol)
Answer:
2 electrons
Explanation:
Oxygen has 6 valence electrons and to be stable it needs 8. That means it needs 2 more electrons to have a full octet.