![subject](/tpl/images/cats/himiya.png)
Chemistry, 09.03.2021 19:40 swaggg8300
What is the sum of the oxidation number of atoms in the compound CO2?
(a) 0
(b) -2
(c) -4
(d) +4
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 20:00
Smog is the term used to describe the combination of fog and smoke
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:20
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
Answers: 1
You know the right answer?
What is the sum of the oxidation number of atoms in the compound CO2?
(a) 0
(b) -2
(c)...
(b) -2
(c)...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.02.2021 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.02.2021 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 26.02.2021 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 22:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 26.02.2021 22:00