In the summer of 2016, the city of columbus dublin road water treatment plan exceeded the regulatory level of nitrate, which is 10 ppm. what is the regulatory level concentration in:

a. mg no3-/l
b. moles no3-/l
c. mg-n/l

alkaline water from a well in owyhee county, idaho contains carbonate (co32-) at 24 mg/l and bicarbonate (hco3-) at 111 mg /l. what is the total carbon concentration in mg c/l?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.