![subject](/tpl/images/cats/himiya.png)
Chemistry, 22.11.2019 08:31 RealGibbon857
Ahydrologist from a government agency tests several samples of water for safety. as part of his examinations, he determines the concentration of lead that is present in each sample.
which method of expressing concentration should the hydrologist use to describe the concentration of lead in the water?
a) ppm or ppb
b) volume percent
c) mass-volume percent
d) mass percent
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 19:00
Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct
Answers: 3
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:30
Compare and contrast refraction of light and sound will give brainliest
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 15:00
Which are forms of frozen water? check all that apply. dew frost hail rain sleet
Answers: 2
You know the right answer?
Ahydrologist from a government agency tests several samples of water for safety. as part of his exam...
Questions
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.05.2021 21:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.05.2021 21:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 18.05.2021 21:50
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.05.2021 21:50