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Chemistry, 11.10.2019 21:30 vale4287

An original sample of k-40 has a mass of 25.00 grams. after 3.9 m 109 years, 3.125 grams of the original sample remains unchanged. what is the half-life of k-40?

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An original sample of k-40 has a mass of 25.00 grams. after 3.9 m 109 years, 3.125 grams of the orig...

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