![subject](/tpl/images/cats/himiya.png)
Chemistry, 16.08.2021 20:30 rashawnglover
A certain radioactive isotope decays at a rate of 85% hourly. Determine the half-life of this isotope to the nearest minute. Use the formula A = lekt where A is the amount at time t, I is the initial amount, and k is the decay constant unique to the substance.
a. 256 min
b. 14 min
c. 22 min
d. 18 min
e. 35 min
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:00
Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:30
How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
You know the right answer?
A certain radioactive isotope decays at a rate of 85% hourly. Determine the half-life of this isotop...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
History, 05.07.2019 22:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/istoriya.png)
History, 05.07.2019 22:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.07.2019 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/nemec.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00
![question](/tpl/images/cats/geografiya.png)
Geography, 05.07.2019 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 22:00