Consider the Equilibrium of Ca(OH)₂(s)in Water

question 13

Multiple Choice

Consider the equilibrium of Ca(OH) ₂(s) in water. Ca(OH) ₂(s) ? Ca²⁺(aq) + 2OH?(aq) , What is the effect of raising the pH of the solution?

• A) Ca²⁺(aq)is reduced to Ca(s).
• B) The concentration of hydronium ion increases.
• C) The concentration of Ca²⁺ increases as Ca(OH)₂ dissolves.
• D) Ca(OH)₂(s)precipitates until equilibrium is reestablished.
• E) Hydroxide ion is reduced to H₂(g).

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