They both have dipole-dipole interactions, intermolecular hydrogen bonding, and vander wals force. However, water has two lone pairs that can do hydrogen bonding whereas ammonia has only 1 lone pair. Solution They both have dipole-dipole interactions, intermolecular hydrogen bonding, and vander wals force. However, water has two lone pairs that can do hydrogen bonding whereas ammonia has only 1 lone pair..