Chemistry, 24.05.2021 17:10, yeeyee69

What percentage of a substance remains after 7 half-lives have passed? A. 0.39
B. 2.5
C. 1.25
D. 0.78

Answers: 3

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What percentage of a substance remains after 7 half-lives have passed? A. 0.39
B. 2.5
C...