![subject](/tpl/images/cats/himiya.png)
"An unknown powder has been found at a crime scene. It is your job to identify the chemical formula for the substance and its common or generic name by searching the internet. Preliminary tests reveal that the possible elements that can be in the material are carbon, hydrogen, oxygen and nitrogen. Complete combustion of a 1.6 g sample of the unknown powder with excess O 2 produced 3.6665 g of CO 2, 1.1601 g of H 2O, and 0.1061 g N 2. The molar mass of the substance was found to be about 211 g/mol.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:50
2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:00
The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:40
Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 03:50
How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?
Answers: 2
You know the right answer?
"An unknown powder has been found at a crime scene. It is your job to identify the chemical formula...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 23.02.2021 05:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/istoriya.png)
History, 23.02.2021 05:00
![question](/tpl/images/cats/fizika.png)
Physics, 23.02.2021 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.02.2021 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 05:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.02.2021 05:00