Mathematics, 18.05.2021 17:40 kamdenburr
Marissa found an isotope that has a half-life of 75 days. How many days will it take for a 20 mg sample of this isotope to decay to 2 mg? Round your answer to the nearest day.
Answers: 1
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The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?
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Mathematics, 21.06.2019 17:30
The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]
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Marissa found an isotope that has a half-life of 75 days. How many days will it take for a
20 mg sa...
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