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The half-life of the radioactive element unobtanium-41 is 10 seconds. If 80 grams of unobtanium dash...
The half-life of the radioactive element unobtanium-41 is 10 seconds. If 80 grams of unobtanium dash 41unobtanium-41 are initially present, how many grams are present after 10
seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds?
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