Suppose that you wanted to form CaCO₃ as a precipitate in an aqueous reaction. What aqueous solutions would you choose as reactants?
a) Ca(NO₃)₂ + 2NaHCO₃
b) NaCO₃ + CaCl₂
c) Na₂CO₃ + CaCl₂
d) Ca(NO₃)₂ + Na₂CO₃