Based on the kinetic molecular theory, which of the following statements is correct about the particles in a sample of gas at a constant temperature and volume? (5 points) A They have negligible kinetic energy. B They attract each other with strong forces. C There is a lot of empty space between them. D Their net kinetic energy decreases due to collisions.

Which best describes why nh4+ can form an ionic bond with ci-?

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.