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An element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element?
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Which factor is likely to impact the possible number of compounds ?
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A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction
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Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?
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An element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this...
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