Question

molecules are attracted to one another by van der waals forces. how do van der waals forces compare with ionic and covalent bonds?
a. van der waals forces are stronger than ionic and covalent bonds.
b. van der waals forces are weaker than ionic and covalent bonds.
c. van der waals forces are stronger than ionic bonds, but weaker than covalent bonds.

Explanation:

Ionic bonds involve the transfer of electrons and covalent bonds involve the sharing of electrons between atoms, creating strong electrostatic attractions. Van der Waals forces are weak intermolecular forces resulting from temporary dipoles or induced - dipoles. So, Van der Waals forces are weaker than both ionic and covalent bonds.

Answer:

B. Van der Waals forces are weaker than ionic and covalent bonds.