Consider the following three equilibria occurring simultaneously in solution
Ca(aq) + C2O4(aq) = CaC2O4(s)
H2C2O4(aq) = H(aq) + HC2O4(aq)
HC2O4 = H(aq) + C2O4(aq)
If NaOH is added to the solution, will the amount of CaC2O4(s) precipitate increase or decrease ? Explain why by discussing the direction of the shift in each equilibrium reaction.