![subject](/tpl/images/cats/himiya.png)
Chemistry, 28.04.2021 17:50 lindseycagle00
A sample of polonium-210 has an initial mass of 390 milligrams (mg). If the half-life of polonium-210 is 36 days, how many mg of the sample remains after 72 days?
A.
392 mg
B.
195 mg
C.
97.5 mg
D.
48.75 mg
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:40, khan2491
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00, luffybunny
There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out
Answers: 1
![image](/tpl/images/cats/himiya.png)
You know the right answer?
A sample of polonium-210 has an initial mass of 390 milligrams (mg). If the half-life of polonium-21...
Questions in other subjects:
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/health.png)
Health, 21.06.2019 23:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/fr.png)
![Konu](/tpl/images/cats/fr.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 21.06.2019 23:00