Answer Happy

Does being in equilibrium with both CaCO3(s) and CO₂(g) increase the solubility of CaCO3(s)? Choose the correct answer with the best reasoning. Yes, because CaCO3(s) results in a weakly acidic solution because H₂CO3 is a weak acid. This makes CO₂ less soluble, which results in increased space for CaCO3 in the solution. O No, because the two equilibrium constants get multiplied together, and the resulting K is smaller than the original. O No, because CaCO3 and CO2 are both acidic, so adding one decreases the solubility of the other. Yes, because formation of H* from one equilibrium and formation of OH from the other combine to form H₂O, which drives the dissolution reaction forward. O Yes, because adding CO₂(g) increases the temperature, and CaCO3(s) is more soluble at a higher temperature.