Agroundwater contains the following constituents: co2 9.6 mg/l mg2+ 25.8 mg/l hco, ca2+ 95.2 mg/l 198 mg/l as caco. the facility is to treat 50 x 106 l/d of water from this source using lime-soda ash to reduce the hardness. determine the quicklime and soda ash dosages for softening. assume the lime is 90% cao by weight and the soda ash is 97% pure sodium carbonate.

It’s the energy source of stars

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

It's potassium i believe