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1. At room temperature, air is usually a (solid, liquid, gas).
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Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer
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In which of these cases are the two wave points considered to be in phase with each other?
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Nonpoint source pollution is difficult to control because it
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Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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1. At room temperature, air is usually a (solid, liquid, gas)....
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