Which pair of elements is most likely to form an ionic compound with each other? * Barium and chlorine
Calcium and sodium
Oxygen and fluorine
Sulfur and carbon

Outermost (valence) electrons

Ionic compounds dissociate into component ions dissolved into a solution creating substances called "electrolytes".hope my answer has you : )

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.

It's called the falling actionwrong subject by the way