When 200.mL of 1.50 × 10^-4 M hydrochloric acid is added to 100.mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

Question

Quizplus · Accepted Answer

When HCl is added to Mg(OH)2, they will react to form MgCl2 and water. 
The balanced chemical equation is: 
2HCl + Mg(OH)2 → MgCl2 + 2H2O 
Since both HCl and Mg(OH)2 are strong acids and bases, respectively, the resulting solution after reaction will be basic with a pH greater than 7. Therefore, the best choice is B.

When 200ML of 1