A Saturated Solution of Calcium Hydroxide, Ca(OH)₂, Is in Contact

question 58

Multiple Choice

A saturated solution of calcium hydroxide, Ca(OH) ₂, is in contact with excess solid Ca(OH) ₂. Which of the following statements correctly describes what will happen when aqueous HCl (a strong acid) is added to this mixture, and system returns to equilibrium? (For Ca(OH) ₂, K_sp = 6.5 × 10^-6)

• A) The solubility of Ca(OH)₂ will be unchanged.
• B) The OH^- concentration will decrease and the Ca²⁺ concentration will increase.
• C) The OH^- concentration will increase and the Ca²⁺ concentration will decrease.
• D) The concentrations of both Ca²⁺ and OH^- will increase.
• E) The solubility of Ca(OH)₂ will decrease.

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Definitions:

Production Possibilities Curve

A graphical representation showing the maximum quantity of two goods or services that can be produced with limited resources.

Temporarily Operating

A status of business or facility operation for a limited period or until a specific event occurs, often used in contexts of transitional management or during emergencies.

Production Possibilities Curve

The Production Possibilities Curve is a graph that shows the maximum possible output combinations of two goods or services an economy can achieve when all resources are fully and efficiently employed.

Economic Growth

The escalation in the real value of products and services an economy produces, adjusted for inflation, over time.