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Problem- Is it likely that both ring connections are mad simultaneously in this experiment (Miniscale synthesis of a substituted pyrimidine) as was observed for the diels-alder synthesis?
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The common charges of an element can be related to the electron configuration of the element. Why would copper ions have 2 common charges? Explain each of them in terms of the electron configuration.
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Diagonal relationship and anomalous behaviour of the each element of the periodic table
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