Chemistry, 03.01.2020 07:31 teyante7301
What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minutes? (1) 0.35g
(2) 1.40 g(3) 0.70 g
(4) 2.80 g
Answers: 1
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What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minut...
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