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Slav-nsk [51]
3 years ago
9

How many mg of a 31-mg sample of calciul 47 remains after 45 days

Chemistry
2 answers:
Feliz [49]3 years ago
8 0
36 days is 8 half-life periods
mario62 [17]3 years ago
7 0
<span>36 days is 8 half-life periods</span>
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Explanation:

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