is-the-solubility-of-zn-oh-2-increased-decreased-or-unchanged-on-addition-of-eac

Question

Ni(OH)₂ is a sparingly soluble hydroxide. Will its solubility increase, decrease, or remain unchanged when a small amount of HBr is added to a solution of Ni(OH)₂?

Write a balanced net ionic equation for the dissolution reaction (if it takes place).

Accepted Answer

Solubility increases
H⁺(aq) + OH^–(aq) → H₂O(l)

Answer

Remains unchanged; No reaction

Answer

Solubility decreases
H⁺(aq) + OH^–(aq) → H₂O(l)

Answer

Solubility increases
H⁺(aq) + OH^–(aq) → H₂O(aq)

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Ni(OH)₂ is a sparingly soluble hydroxide. Will its solubility increase, decrease, or remain unchanged when a small amount of HBr is added to a solution of Ni(OH)₂?
Write a balanced net ionic equation for the dissolution reaction (if it takes place).