Calcium Carbonate and Hydrochloric Acid (Antacid)

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Visão geral

Calcium carbonate, found in Tums antacid tablets, neutralizes hydrochloric acid in the stomach to form calcium chloride, water, and carbon dioxide gas. The carbonate ion acts as a base, accepting protons from HCl. The CO₂ evolved can cause belching.

Participantes

Papel Substância Coeficiente Estado
Reagente Calcium Carbonate CaCO₃ 1 (s)
Reagente Hydrochloric Acid HCl 2 (aq)
Produto Water H₂O 1 (l)
Produto Carbon Dioxide CO₂ 1 (g)

Exemplo do cotidiano

Tums antacid tablets work by this exact reaction, neutralizing excess stomach acid and providing relief from heartburn.

Importância industrial

O carbonato de cálcio é extensivamente utilizado em aplicações de neutralização de ácidos, incluindo tratamento de água, dessulfuração de gases de combustão e correção do pH do solo na agricultura.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-15,3 kJ/mol

Reações relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Calcium Carbonate and Hydrochloric Acid (Antacid)?
The balanced equation is: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.
What type of reaction is Calcium Carbonate and Hydrochloric Acid (Antacid)?
Calcium Carbonate and Hydrochloric Acid (Antacid) is a acid-base reaction.
Is Calcium Carbonate and Hydrochloric Acid (Antacid) exothermic or endothermic?
Calcium Carbonate and Hydrochloric Acid (Antacid) is exothermic (releases energy). The enthalpy change (ΔH) is -15.3 kJ/mol.