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Where do glaciers come from
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Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Stage in which a star’s outer layers have started to cool and grow outward?
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Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.
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How can parts of a solution be separated by chromatography?
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Where do glaciers come from...
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