Calcium Carbonate and Hydrochloric Acid (Antacid)

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Calcium Carbonate CaCO₃ 1 (s)
Chất phản ứng Hydrochloric Acid HCl 2 (aq)
Sản phẩm Water H₂O 1 (l)
Sản phẩm Carbon Dioxide CO₂ 1 (g)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Calcium carbonate is used extensively in acid neutralization applications including water treatment, flue gas desulfurization, and soil pH adjustment in agriculture.

Tính chất

Loại
Acid-Base
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-15,3 kJ/mol

Phản ứng liên quan

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.