Chemistry, 11.12.2019 20:31 chassidytjtrimb
It requires 24 hours for a sample of helium gas to effuse through a porous membrane. how long will it take for the same amount of oxygen gas to effuse through the same membrane? assume both gases are at the same temperature. a. 12 hours b. 68 hours c. 48 hours d. 8.5 hours e. 32 hours
Answers: 1
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The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call
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The minerals found in bones are deposited by living cells called
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Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump
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An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.
Answers: 3
It requires 24 hours for a sample of helium gas to effuse through a porous membrane. how long will i...
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