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Chemistry, 05.03.2021 20:20 hannahmorgret7811
T 1/2 of 85Kr is 10.75 years. If you start with 640 g of 85Kr, how much would you have left after 75.25 years?
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T 1/2 of 85Kr is 10.75 years.
If you start with 640 g of 85Kr, how much would you have left after 7...
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