![subject](/tpl/images/cats/himiya.png)
Chemistry, 25.09.2020 03:01 majorsam82
Calculate the mass of the air contained in a room that measures 2.50 m × 5.50 m × 3.00 m (density of air = 1.29 g/dm3 at 25°C).
![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)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:00
One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:00
Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
You know the right answer?
Calculate the mass of the air contained in a room that measures 2.50 m × 5.50 m × 3.00 m (density of...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 21:10
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 21:10
![question](/tpl/images/cats/biologiya.png)
Biology, 31.10.2021 21:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 21:30
![question](/tpl/images/cats/biologiya.png)
Biology, 31.10.2021 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 21:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 21:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.10.2021 21:40
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.10.2021 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.10.2021 22:30
![question](/tpl/images/cats/nemec.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 31.10.2021 22:30
![question](/tpl/images/cats/biologiya.png)
Biology, 31.10.2021 22:30