How do hydrogen bonds compare with other intermolecular forces?

A. Hydrogen bonds are stronger than dipole-dipole and Van der

Waals forces.

B. Hydrogen bonds are weaker than dipole-dipole and Van der Waals

forces.

C. Hydrogen bonds are stronger than dipole-dipole forces but weaker

than Van der Waals forces.

D. Hydrogen bonds are weaker than dipole-dipole forces but stronger

than Van der Waals forces.

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?