The equilibrium vapor pressure of water at 50.0°c is 92.5 torr. if 0.250 g of h2o is collected in a closed 200.0-ml flask maintained at 50.0°c, which phase(s) of water will be present in the flask? assume the density of liquid water is 1.00 g/ml. what mass of water is in the vapor phase at equilibrium? (enter 0 if none) what mass of water is in the liquid phase at equilibrium?

The minerals found in bones are deposited by living cells called

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes. which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature. sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Which of the following is not true about the atomic model of substances?