Why does a weather balloon pop if it goes too high? a. the volume of gas increases as the amount of gas in the balloon increases. b. the pressure in the balloon decreases as the temperature increases. c. the pressure in the balloon increases as the volume decreases. d. the volume of gas increases as the pressure decreases with altitude.

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

)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.