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I visit the Grand Canyon I go to arizona.(once, whenever, wherever)
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The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
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Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2
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Consider the heating curve of h2o and line segments a, b, and c. several changes are taking place at a, b, and c. all but one would be an appropriate description as e move through segments a, b and then c.
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I visit the Grand Canyon I go to arizona.(once, whenever, wherever)...
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