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Helium decays to form lithium. which equation correctly describes this decay?
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Why is it that 85.48 rounded to two significant figures is 85 and not 86?
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What is the magnitude of the force of gravity between to 1000 kg cars which are separated by distance of 25. 0 km on an interstate highway? the force between the two cars will be what
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How did mendeleev discover the pattern that led to the periodic table?...
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