Question

PLEAAAAAASE CAN SOMEONE JUST ANSWER THIS

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The half life of Rn-222 is 3.8 days. If a basement holds 60 grams of Rn, how much will remain after 22.8 days?

Answer 1

Answer:0.9375, the second question is 1, the third question is 400, and the last is 3

Explanation: I just did the worksheet in my Chem class, and it was quite easy I didn't feel like going to all your questions and answering them so there ya go!