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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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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
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A radioisotope of the element carbon (^10°C) decays to an isotope of the element boron by
emission...
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