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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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Air can be considered a mixture. which statement does not explain why?
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How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.
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Un compuesto orgánico tienen la siguiente composición centesimal: 64,87% de carbono; 13,51% de hidró...
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