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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

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.