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Chemistry, 01.07.2019 17:40, alyssacyamamoto8050
Dead leaves decaying, is it a chemical or physical change
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In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?
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Chemistry, 22.06.2019 16:00, jrocklove7825
About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
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