When 100 ML Each of 2

Multiple Choice

When 100 mL each of 2.0 × 10^-5 M Ca²⁺(aq) and 2.0 × 10^-3 M CO₃^2-(aq) are mixed,what is the remaining Ca²⁺(aq) ion concentration and is precipitation complete? The solubility product constant of CaCO₃(s) is 2.8 × 10^-9.

A) 2.8 × 10^-6 M,no
B) 1.0 × 10^-3 M,no
C) 6.9 × 10^-5 M,no
D) 2.8 × 10^-3 M,no
E) 2.8 × 10^-6 M,yes