Question

1. an example of a covalent bond is this.

a iron (fe)
b water (h2o)
c salt (nacl)

Explanation:

Covalent bonds form when atoms share electrons. In water (H₂O), hydrogen and oxygen share electrons to achieve stable electron configurations. Iron is a metal with metallic bonding, and salt (NaCl) has an ionic bond due to the transfer of electrons from sodium to chlorine.

Answer:

B. water (H₂O)