Question

Write balanced equations for the reaction of Mg(OH)2 with stomach acid (HCl). Express your answer as a chemical equation. Identify all of the phases in your answer.

Answer 1

Answer:

Mg(OH)₂(s) + 2HCl(aq) ----> MgCl₂(aq) + 2H₂O(l)

Explanation:

Magnesium hydroxide is a white solid that is sparingly soluble in water. It is a basic hydroxide, therefore it neutralizes acids to form salt and water.

Magnesium hydroxide commonly used as an antacid, for example milk of magnesia,  because it reduces stomach acid, and increases water in the intestines which may induce bowel movements. It also relieves indigestion, sour stomach, and heartburn. Magnesium hydroxide is also used as a laxative to relieve occasional constipation.

The equation for the reaction between magnesium hydroxide and stomach acid, HCl, is as follows:

Mg(OH)₂(s) + 2HCl(aq) ----> MgCl₂(aq) + 2H₂O(l)