posted by nichole .
What is the net ionic equation for calcuim ion and ammonium oxalate?
Look for a precipitate, a gas, or a weak electrolyte. In this case, CaC2O4 is insoluble. Here is a simplified list of the solubility rules.
Ca^+2(aq) + C2O4^-2(aq) ==> CaC2O4(s)