![subject](/tpl/images/cats/himiya.png)
Determine which statements about polyaromatic hydrocarbons are true and which are false. PAH are natural products that are produced by many species of animals. false true PAH are produced in the combustion of wood and tobacco. false true PAH are commonly found in industrial wastewater. true false PAH are common, harmless chemicals found in air and municipal water sources. true false
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:30
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 15:30
The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 04:00
What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Determine which statements about polyaromatic hydrocarbons are true and which are false. PAH are nat...
Questions
![question](/tpl/images/cats/geografiya.png)
Geography, 17.10.2019 05:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.10.2019 05:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 17.10.2019 05:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 05:30
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 05:30
![question](/tpl/images/cats/geografiya.png)
Geography, 17.10.2019 05:30
![question](/tpl/images/cats/health.png)
Health, 17.10.2019 05:30
![question](/tpl/images/cats/geografiya.png)
Geography, 17.10.2019 05:30
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 05:30
![question](/tpl/images/cats/ekonomika.png)
Business, 17.10.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.10.2019 05:30