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Chemistry, 29.07.2019 06:00 Brock2002

On a mission to a newly discovered planet, an astronaut finds copper abundances of 69.15 % for 63cu and 30.85 % for 65cu. what is the atomic mass of copper for this location? the mass of 63cu is 62.9300 amu . the mass of 65cu is 64.9200 amu .

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