![subject](/tpl/images/cats/himiya.png)
Chemistry, 01.10.2019 20:40 Sydney012618
Name a substance in the air which makes the surface of limestone change
![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, 21.06.2019 22:00
Afamily is one another name for a group on the table of elements.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:30
In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never
Answers: 2
You know the right answer?
Name a substance in the air which makes the surface of limestone change...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.01.2021 17:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 26.01.2021 17:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 26.01.2021 17:00
![question](/tpl/images/cats/istoriya.png)
History, 26.01.2021 17:00
![question](/tpl/images/cats/en.png)
English, 26.01.2021 17:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.01.2021 17:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.01.2021 17:00
![question](/tpl/images/cats/istoriya.png)
History, 26.01.2021 17:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 26.01.2021 17:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.01.2021 17:00
![question](/tpl/images/cats/istoriya.png)
History, 26.01.2021 17:00