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Chemistry, 31.10.2019 04:31 genyjoannerubiera

6. the half life for uranium-235 is 7.0x108 years.
a. how many half-lives did the sample go through at the end of 2.8x10 years

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6. the half life for uranium-235 is 7.0x108 years.
a. how many half-lives did the sample go thr...

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