Intermolecular interactions

Question 1

What is the strongest covalent intermolecular interaction?

Answer 1

Hydrogen bonding.

The difference in electronegativity between hydrogen and halogens makes their interactions high (energies between 10 to 40 kJ/mol)

Question 2

Which are the most common intermolecular interactions?

Answer 2

London forces.

These interactions are present in almost all covalent molecules. The greater the molecular mass, the greater the force.

Question 3

What is the basis of attraction in dipole-dipole induced interactions?

Answer 3

One molecule has a dipole while the other does not, but it has a polarizable density, so it can be induced to have a dipole.

Question 4

Which molecules present dipole-dipole interactions?

Answer 4

Identical molecules.

When there is no difference between the electronic densities, there are no induced dipoles.

Question 5

What are the interactions between HCl?

Answer 5

Dipole-dipole.

Chlorides interact with the hydrogens of the other molecules and vice versa.