Hi everyone! this question from topscore is really bugging me. I've tried to look up the correct answer and understand why it is right, but I'm still confused. Here's the question: What is the expression for the solubility product constant, Ksp, for BaCl2? Topscore says the answer is [Ba+2][Cl-2], but isn't Cl-1?? I don't get it...please help!