![subject](/tpl/images/cats/himiya.png)
![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 17:00
What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:30
The sum of the oxidation numbers in a neutral compound is always
Answers: 2
You know the right answer?
Please help me.
Look at the periodic table shown in the video and determine the number of protons i...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 02.08.2019 00:40
![question](/tpl/images/cats/en.png)
English, 02.08.2019 00:40
![question](/tpl/images/cats/health.png)
Health, 02.08.2019 00:40
![question](/tpl/images/cats/biologiya.png)
Biology, 02.08.2019 00:40
![question](/tpl/images/cats/mat.png)
Mathematics, 02.08.2019 00:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.08.2019 00:40
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.08.2019 00:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
Health, 02.08.2019 00:40
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.08.2019 00:40
![question](/tpl/images/cats/mat.png)
Mathematics, 02.08.2019 00:40
![question](/tpl/images/cats/biologiya.png)
Biology, 02.08.2019 00:40
![question](/tpl/images/cats/mat.png)