Section: Chemical and Physical Foundations of Biological Systems

25) Mg(OH)₂ is slowly dissolved in 500 mL of 25^oC water until the solution becomes fully saturated. Which of the following occurs when 10.0 mL of 0.1 M HCl is added?

1. MgCl₂ precipitates
2. Mg(OH)₂ precipitates
3. K_sp for Mg(OH)₂ increases
4. [H₂O] increases