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Chemistry, 26.10.2020 05:50 noobnoobnoobnoob666

How much of a 500 g sample of potassium-42 is left after 62 hours? The half-life of K-42 is 12.4 hours

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How much of a 500 g sample of potassium-42 is left after 62 hours? The half-life of K-42 is 12.4 hou...
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