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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
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The biosphere of the earth is made up of what compound? organic or inorganic?
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