In writing the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of koh and mg(no3)2 are mixed, which of the following would not be . written as ionic species? . a) koh. b) mg(no3)2. c) mg(oh)2. d) kno3. e) all of the above would be written as ionic species.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.