![subject](/tpl/images/cats/himiya.png)
Fluoride ion is poisonous in relatively low amounts: 0.2 g of f- per 70 kg of body weight can cause death. nevertheless, in order to prevent tooth decay, f- ions are added to drinking water at a concentration of 1 mg of f- ion per l of water. how many liters of fluoridated drinking water would a 70-kg person have to consume in one day to reach this toxic level? how many kilograms of sodium fluoride would be needed to treat a 8.5 x107-gal reservoir?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:30
Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:00
As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 04:20
The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3
Answers: 1
You know the right answer?
Fluoride ion is poisonous in relatively low amounts: 0.2 g of f- per 70 kg of body weight can cause...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.02.2021 23:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/mkx.png)
Arts, 12.02.2021 23:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 23:20
![question](/tpl/images/cats/biologiya.png)
Biology, 12.02.2021 23:20
![question](/tpl/images/cats/fizika.png)
Physics, 12.02.2021 23:20