Question: help you grasp some prerequisite material. Question If a substance has a half-life of 39.1 min, and there are initially 20.0 g of the substance,

help you grasp some prerequisite material. Question If a substance has a half-life of 39.1 min, and there are initially 20.0 g of the substance, how many grams will remain after precisely two hours? Report your answer with three significant figures. Sorry, that's incorrect. Try again? 2.30 FEEDBACK VIEW ANSWER SUBMIT Toot

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