Magnesium Hydroxide and Hydrochloric Acid (Antacid)

Mg(OH)2 + 2HCl → MgCl2 + 2H2O

Übersicht

Magnesium hydroxide (milk of magnesia) neutralizes hydrochloric acid to form magnesium chloride and water. This is exactly the reaction that occurs in the stomach when antacid tablets are taken. Magnesium hydroxide is a mild base that neutralizes acid without causing rebound acidity.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Magnesium Hydroxide Mg(OH)₂ 1 (s)
Reaktant Hydrochloric Acid HCl 2 (aq)
Produkt Water H₂O 2 (l)

Alltägliches Beispiel

Milk of magnesia antacid works by this reaction, neutralizing excess stomach acid (HCl) to relieve heartburn and indigestion.

Industrielle Bedeutung

Magnesium hydroxide is used in antacid formulations, as a fire retardant in plastics, and in wastewater treatment for heavy metal removal.

Eigenschaften

Typ
Double Replacement
Reversibel
Nein
Energie
Exotherm
ΔH
-108,0 kJ/mol

Verwandte Reaktionen

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Magnesium Hydroxide and Hydrochloric Acid (Antacid)?
The balanced equation is: Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O.
What type of reaction is Magnesium Hydroxide and Hydrochloric Acid (Antacid)?
Magnesium Hydroxide and Hydrochloric Acid (Antacid) is a double replacement reaction.
Is Magnesium Hydroxide and Hydrochloric Acid (Antacid) exothermic or endothermic?
Magnesium Hydroxide and Hydrochloric Acid (Antacid) is exothermic (releases energy). The enthalpy change (ΔH) is -108.0 kJ/mol.