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A 1207 g sample of ground water is found to contain 0.0448 g of arsenic. Calculate the concentration of arsenic in parts per million, ppm.
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Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.
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In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus. b) the number of neutrons it contains in its nucleus. c) the number of protons it has in a cloud around the nucleus. d) the number of neutrons it has in a cloud around the nucleus. e) the number of electrons it exchanges with its neighbors.
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A 1207 g sample of ground water is found to contain 0.0448 g of arsenic. Calculate the concentration...
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