Question

A. What do antacids do? B. What are two bases that may be found listed on the labels of antacids? C. Write a balanced chemical reaction to show how one of the bases in part B does what you answered in part A.

Answer 1

A. What do antacids do? B. What are two bases that may be found listed on the labels of antacids? C. Write a balanced chemical reaction to show how one of the bases in part B does what you answered in part A.

A) Antacid are inorganic bases and they provides OH^-(hydroxyl) ions in aqueous medium that neutralizes H⁺ ion by forming H₂O water molecule.

B) Aluminium hydroxide [Al(OH)₃] and Magnesium hydroxide [Mg(OH)₂] are two important base that we may find listed on the labels of antacids. Sodium bi-carbonate is anathor antacid used in day to day life. Calcium carbonate (CaCO₃), Magnesium carbonate (MgCO₃) are also the examples of antacids.

C) Antacids contains inorganic bases which ionizes to give OH^- ions which neutralizes H⁺ ions ionized by acid HCl in stomach. The balanced neutralization reactions are as follows,

Al(OH)₃(s) + 3HCl(aq.) ------- > AlCl₃(aq.) + 3H₂O (l)

Mg(OH)₂(s) + 2HCl(aq.) --------> MgCl₂(aq.) + 2H₂O(l)

NaHCO₃(aq.) + HCl(aq.) --------- > NaCl(aq.) + H₂O (l) + CO₂(g)

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