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What’s the scientific notation for the number 6,840,000,000
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Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?
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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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Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.
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Calculate the. number of moles of cu. in 8.0×1021 atoms of cu...
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