Fluoride ion is poisonous in relatively low amounts: 0.2 g of f - per 70 kg 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?
l
how many kilograms of sodium fluoride would be needed to treat a 7.75 107 gal reservoir?
kg

Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.

What is the molarity of 60.0 grams of naoh dissolved in 750 milliliters of water? a) 1.1 m b) 2.0 m c) 12 m d) 75 m