Manganese that is dissolved in water as mn2+ is often removed in treatment systems. if dissolved manganese is not removed, then it can be converted to mnooh(s) and mno2(s) solids, which stain water fixtures and clothes washed in the water. (a) balance the following chemical reaction that describes the oxidation of mn2+ by o2. mn2+ + o2 + h2o --> mnooh(s) + h + (b) a treatment system removes dissolved mn2+ by converting it to mnooh(s) before the water is used. what mass of mnooh(s) will be produced each day in a treatment system that treats 100,000 gallons/day? before treatment the water contains 0.5 mg/l of mn2+, and after treatment the concentration of mn2+ is 0.02 mg/l. note that 1 gal = 3.79 l. give your answer in gram. (c) these two metal ions can also be oxidized by chlorine. finish the equations by adding the missing species and balancing the element/charge/valence.