A small pond has a surface area of 0.15 ha and a depth of 1.5 m, andcontains 10 ppm (10 mg/liter) of benzene (C6H6).a. for methane has been determined to be 12 cm/hr. b.Estimate the concentration of benzene in the pond after a week, assuming that only volatilization is acting to remove benzene fromthe pond.

If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)