Intermolecular forces review

Front

What is an intermolecular force?

Back

An intermolecular force is a force of attraction or repulsion between neighboring particles (molecules, atoms, or ions). These forces influence the physical properties of substances, such as boiling and melting points.

Front

What type of intermolecular force is present in HCl?

Back

Dipole-dipole forces.

Front

What type of intermolecular force is present in H2S?

Back

Dipole-dipole forces.

Front

Which substance has the weakest intermolecular forces: CH4, NaCl, H2O, or MgF2?

Back

CH4 (methane) has the weakest intermolecular forces.

Front

What type of intermolecular force is present in I2, Br2, and Cl2?

Back

London Dispersion Forces.

Front

How do intermolecular forces affect boiling points?

Back

The weaker the intermolecular forces of a substance, the lower the boiling point.

Front

What are London Dispersion Forces?

Back

London Dispersion Forces are weak intermolecular forces arising from temporary dipoles in molecules, which occur due to the movement of electrons.

Front

What is a dipole-dipole force?

Back

A dipole-dipole force is an attractive force between the positive end of one polar molecule and the negative end of another polar molecule.

Front

What is hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

What is the relationship between molecular size and London Dispersion Forces?

Back

As molecular size increases, London Dispersion Forces generally increase due to a larger electron cloud, leading to greater polarizability.