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Chemistry, 22.06.2019 08:00
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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Chemistry, 22.06.2019 12:30
Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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What volume would 1.5 mol of nitrogen gas occupy at standard temperature and pressure?...
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