At 900 C, Kc = 0.0108 for the reaction CaCO31s2 Δ CaO1s2 + CO21g2 A mixture of CaCO3, CaO, and CO2 is placed in a 10.0-L vessel at 900 C. For the following mixtures, will the amount of CaCO3 increase, decrease, or remain the same as the system approaches equilibrium? (c) 30.5 g CaCO3, 25.5 g CaO, and 6.48 g CO2