![subject](/tpl/images/cats/himiya.png)
Chemistry, 30.09.2019 12:30 zamyapritchard5
The half-life of a radioactive isotope is 20 minutes. what is the total amount of 1.00 g of sample of this isotope remaining after 1 hour?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/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 04:00
Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:50
What are transitions between a liquid and gas called? identify which way they are transitioning
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
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
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?
Answers: 1
You know the right answer?
The half-life of a radioactive isotope is 20 minutes. what is the total amount of 1.00 g of sample o...
Questions
![question](/tpl/images/cats/en.png)
English, 04.02.2021 01:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/en.png)
English, 04.02.2021 01:50
![question](/tpl/images/cats/en.png)
English, 04.02.2021 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/fr.png)
French, 04.02.2021 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 04.02.2021 01:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2021 01:50