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Sagot :
Answer:
(2) OH- is the answer.
Explanation:
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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
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