![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)
Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:00
The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Is water wet? A. yes B. no C. Idk...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 05:00
![question](/tpl/images/cats/biologiya.png)
Biology, 26.06.2019 05:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 05:00
![question](/tpl/images/cats/fizika.png)
Physics, 26.06.2019 05:00
![question](/tpl/images/cats/en.png)
English, 26.06.2019 05:00
![question](/tpl/images/cats/es.png)
Spanish, 26.06.2019 05:00
![question](/tpl/images/cats/istoriya.png)
History, 26.06.2019 05:00
![question](/tpl/images/cats/istoriya.png)