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Chemistry, 28.10.2020 09:00 pg67891012345

A sample of element Z, which has two isotopes, is made up of 75% Z-12 and 25% Z-13. Calculate the average atomic mass. Round your answer to TWO PLACES after the decimal. Enter your answer as a number (no units)

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A sample of element Z, which has two isotopes, is made up of 75% Z-12 and 25% Z-13. Calculate the av...
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