Unit 03 Test Review

Water has a higher boiling point than methane due to stronger hydrogen bonds compared to methane's van der Waals forces.

Covalent bonding involves the sharing of electron pairs between atoms.

A molecule is polar if it has a net dipole moment due to the presence of polar bonds and an asymmetrical shape; otherwise, it is non-polar.

A covalent bond forms between hydrogen and oxygen atoms.

Chlorine (Cl) has the greatest electronegativity.

Hydrogen bonds are weak attractions between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electron pairs.

A polar molecule has a partial positive charge on one side and a partial negative charge on the other due to unequal sharing of electrons.

A non-polar molecule has an even distribution of electrical charge, meaning it does not have distinct positive or negative poles.