Florida Biology EOC Practice Test

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What type of bonding occurs due to the attraction between the slightly positive hydrogen of one molecule and the slightly negative oxygen of another water molecule?

Covalent Bonding
Hydrogen Bonding
Ionic Bonding
Metallic Bonding

The correct answer is: Hydrogen Bonding

Hydrogen bonding occurs because of the polarity of the water molecule, which is due to the difference in electronegativity between hydrogen and oxygen atoms. This causes the slightly positive hydrogen atom to be attracted to the slightly negative oxygen atom in another water molecule, forming a weak bond between the molecules. Covalent bonding occurs when atoms share electrons, while ionic bonding occurs when one atom transfers electrons to another. Metallic bonding involves the sharing of electrons in a sea of delocalized electrons, which is not applicable to water molecules. Therefore, the correct answer is hydrogen bonding in this case.