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Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules
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Asolution is produced in which water is the solvent and there are four solutes. which of the solutes can dissolve better if the solution is heated?
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Which can be observed only in a microscopic view? a) structure of a muscle cell b) shape of a soybean plant c) foam insulation d) x-ray of a knee joint
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Is bacon a natural resource true or false...
Mathematics, 28.09.2019 05:30
Mathematics, 28.09.2019 05:30