Mathematics, 16.07.2019 08:10 chloebaby8
The mass of a an atom of helium is 6.65 x 10^−24. use scientific notation to express the mass of 250 helium atoms. a) 1.6625 x 10−21 b) 1.6625 x 10−22 c) 1.6625 x 10−24 d) 1.6625 x 10−26
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The mass of a an atom of helium is 6.65 x 10^−24. use scientific notation to express the mass of 250...
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