The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor pressure of mercury be 0.2000 atm? (∆Hvap = 58.51 kJ/mol)

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?