The ions that combine with Ba2 to form the compound most soluble in water is OH- ion.
What is barium?
Barium is a chemical element with atomic number 58.
Barium reacts with the hydroxide ion to form barium hydroxide. It is also called baryta water.
The reaction is [tex]Ba^2^+ aq + 2OH^- \rightarrow Ba(OH)_2 (aq)[/tex]
Thus, the ions that combine with Ba2 to form the compound most soluble in water is OH- ion.
Learn more about barium
https://brainly.com/question/2782682
#SPJ4
