Chemistry, 15.02.2021 21:30 ashled7789
copper contains two isotopes with mass numbers 64 and 66. the relative atomic mass of copper is 63.5.calculate the percentage of copper having mass of 64 and 66.
Answers: 3
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Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances
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8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
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Which molecules are more strongly attracted to one another -c3h8o molecules that make up liquid rubbing alcohol or ch4 molecules that make up methane gas
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copper contains two isotopes with mass numbers 64 and 66. the relative atomic mass of copper is 63.5...
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