500 g
![subject](/tpl/images/cats/himiya.png)
Chemistry, 11.05.2020 13:57 greatsavagebeast
4. The half-life of strontium-90 is 28 years. If 140 years pass, how much if left of a
500 g
sample?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 02:30
Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:00
Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:30
How can the periodic table be used to predict the behavior of elements?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:30
Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.
Answers: 1
You know the right answer?
4. The half-life of strontium-90 is 28 years. If 140 years pass, how much if left of a
500 g
500 g
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 20:53
![question](/tpl/images/cats/es.png)
Spanish, 31.03.2020 20:53
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 20:53
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.03.2020 20:53
![question](/tpl/images/cats/mir.png)
World Languages, 31.03.2020 20:53
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 20:53
![question](/tpl/images/cats/health.png)
Health, 31.03.2020 20:53
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 20:53
![question](/tpl/images/cats/geografiya.png)
Geography, 31.03.2020 20:53
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 20:53
![question](/tpl/images/cats/biologiya.png)
Biology, 31.03.2020 20:53
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 31.03.2020 20:53
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 20:53
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 20:53
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 20:53