Magnesium Hydroxide and Hydrochloric Acid (Antacid)

Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Magnesium Hydroxide Mg(OH)₂	1	(s)
Reagente	Hydrochloric Acid HCl	2	(aq)
Produto	Water H₂O	2	(l)

Exemplo do cotidiano

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

Importância industrial

O hidróxido de magnésio é utilizado em formulações antiácidas, como retardante de chama em plásticos e no tratamento de efluentes para remoção de metais pesados.

Propriedades

Tipo: Double Replacement
Reversível: Não
Energia: Exotérmico
ΔH: -108,0 kJ/mol

Reações relacionadas

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.