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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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a radioactive isotope. Z-109 has a half life off 43.1 years. how manny years Will it take the sample to decay so that 27% remains of the original activity. 3 sig figs
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