Ineed , the longer i look at this question the more i confuse ! consider the unbalanced equation: hc2h3o2 (aq) +ba(oh)2 (aq) --> h2o (l) +ba(c2h3o2)2 (aq) balance the equation and determine how many moles of ba(oh)2 are required to completely neutralize 0.461 mole of hc2h3o2.

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.