kedelynsantana kedelynsantana

22-04-2021
Chemistry

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Question is in picture

Question is in picture class=

Respuesta :

Username1209 Username1209

22-04-2021

Answer:

30

Explanation:

I believe it's 30 because half of 24 is 12 and that is its half life. And as you know it took 30 minutes to get there.

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