Which of the following is NOT a "weak" interaction? a. hydrogen bonds b. van der Waals forces c. disulfide bonds d. ionic interactions e. hydrophobic interactions

What is the subscript for oxygen in its molecular formula

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?