Calcium Carbonate and Hydrochloric Acid

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

Descripción general

Calcium carbonate (limestone or marble) reacts with hydrochloric acid to produce calcium chloride, water, and carbon dioxide. This is the reaction used to test for carbonate minerals by adding acid and observing effervescence. Marble fizzes when acid is dropped on it.

Participantes

Rol	Sustancia	Coeficiente	Estado
Reactivo	Calcium Carbonate CaCO₃	1	(s)
Reactivo	Hydrochloric Acid HCl	2	(aq)
Producto	Water H₂O	1	(l)
Producto	Carbon Dioxide CO₂	1	(g)

Ejemplo cotidiano

Antacid tablets like Tums contain calcium carbonate, which neutralizes stomach acid via this reaction, releasing CO2 that may cause burping.

Importancia industrial

Esta reacción se utiliza en el control de calidad de canteras de caliza, en la producción de cloruro de calcio para deshielo de carreteras y en la neutralización de ácidos en el tratamiento del agua.

Propiedades

Tipo: Double Replacement
Reversible: No
Energía: Exotérmico
ΔH: -15,3 kJ/mol

Reacciones relacionadas

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) 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 Sodium Carbonate and Hydrochloric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Calcium Carbonate and Hydrochloric Acid?

The balanced equation is: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.

What type of reaction is Calcium Carbonate and Hydrochloric Acid?

Calcium Carbonate and Hydrochloric Acid is a double replacement reaction.

Is Calcium Carbonate and Hydrochloric Acid exothermic or endothermic?

Calcium Carbonate and Hydrochloric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -15.3 kJ/mol.