Which pairs would form covalent bonds? Check all that apply.H and ClNa and FK and BrCa and IC and OAl and Al

Covalent bonds usually form between nonmetals, which share electrons. Hydrogen and chlorine are both nonmetals, as are carbon and oxygen, so H and Cl and C and O form covalent bonds. The metal–nonmetal pairs listed typically form ionic bonds, while two aluminum atoms form metallic bonding.

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