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LenaWriter [7]
2 years ago
10

You start out with 800 moles of a radioactive substance. After 24 hours, 100 moles remain. What is the half-life of the substanc

e in hours?
Question 1 options:

12 hours


4 hours


8 hours


6 hours
Chemistry
2 answers:
steposvetlana [31]2 years ago
7 0

Answer:

The correct answer would be 8 hours

Explanation:

Ludmilka [50]2 years ago
4 0

Answer:

12 hours

Explanation:

It would take 12 hours for half of the substance to remain

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