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14) Oxygen-15 has a half-life of 2 minutes. How old is the substance after 5 half-lives?
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14) Oxygen-15 has a half-life of 2 minutes. How old is the substance after 5 half-lives?

User Flunch
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1 Answer

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10 minutes old.

Step-by-step explanation:

each half life is 2 minutes, meaning it takes 2 minutes for a half life to pass. After five 2 minute chucks of time, 10 minutes have passed. mathematically 2*5 =10

User NoSense
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