Chemistry

Chemistry, 19.07.2019 10:00, levilugar

Aradioactive isotope of potassium (k) has a half-life of 20 minutes. if a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain?

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Physics, 28.06.2019 15:00, uchapman6286

Aradioactive isotope of potassium has a half-life of 20 minutes if a 40 g sample of this isotope is allowed to decay for 80 minutes how many grams of the r adioactive isotope will remain

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Physics, 07.10.2019 23:30, aylagwilliamson

Aradioactive isotope of potassium (k) has a half-life of 20 minutes. if a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? a) 2.5 grams b) 5.0 grams c) 10.0 grams d) 40.0 grams

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Aradioactive isotope of potassium (k) has a half-life of 20 minutes. if a 40.0 gram sample of this i...

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