Why did a drop of water need to be added in order to initiate the reaction? Select one: a. because the water is needed to wet the chlorine gas so the reaction could occur b. because the water is needed to cool off the reaction so the flask will not explode c. because the water is needed to wet the sand and keep the reaction safe d. because the water is needed to remove a coating on the surface of the metal. It's not A

c

Explanation:

because the water is needed to wet the sand to keep d reaction safe

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.