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Chemistry, 10.07.2019 21:00 cocoarockford

One mole of beryllium (be) contains the same number of atoms as 22.99 g of sodium. there are about 2.007×1023 atoms in 9.0 g al. one mole of calcium (ca) weighs about as much as two moles of neon (ne). 11.495 g of sodium contains 6.022×1023 atoms.

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One mole of beryllium (be) contains the same number of atoms as 22.99 g of sodium. there are about 2...
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