Submitted by examrobotsa on Thu, 01/01/1970 - 05:30 Neutral water with pH about 7 becomes slightly acidic when aerated. This is becauseoxygen from air is dissolved in the water which makes the water acidic dirt, which get contaminated with the water during aeration makes the water acidicultraviolet radiation dissociates water molecules and makes water acidiccarbon-dioxide from air is dissolvedstats: 0,296,376,264,56,56,296