Post Utme Unn 2019 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2019 Post Utme Unn Chemistry examination.
The half-life of a radioactive subs\tance is 5.0 days. If 100 mg of the subs\tance is present initially, how much will remain after 20 days?
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About This Question
This is Post Utme Unn 2019 Chemistry Question 7. It is one of the objective questions from the 2019 Post Utme Unn Chemistry examination.
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