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Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.
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Which sample at stp has the same number of atoms as 18 liters of ne at stp
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Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
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Draw a structural isomer of ethylcyclohexane that also contains a 6-carbon ring....
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