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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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What does the mass of 0.7891 mol of ferric oxide (fe2o3)
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How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
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One mole of H2 S o4 contains off 4.22 into 10 raise to power 24 atoms is it true or false...
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