Which statement is true regarding the waves shown? a) doubling the frequency of the bottom waves by will cause it to match the top waves. b) cutting the frequency of the bottom waves in half will cause it to match the top waves. c) there is no way to match the bottom and top waves to the same frequency. d) decreasing the frequency of the top waves by half will cause it to match the bottom waves.

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.