Question

A researcher adds barium hydroxide to hydrochloric acid to form a white-colored barium chloride. Which option gives the balanced chemical equation of the reaction? (a) HCl + Ba(OH)2 → BaCl2 + 2HOH (b) 2HCl + Ba(OH)2 → BaCl2 + 2HOH (c) 2HCl + Ba(OH)2 → BaH2 + 2HCl + O2 (d) HCl + 2Ba(OH) → 2BaCl2 + 2HOH + O2​

Answer 1

Answer:

Ba(OH)2 + 2HCl gives BaCl2 +2HOH.

answer is option b.

Answer 2

(b) 2HCl + Ba(OH)2 → BaCl2 + 2HOH is the correct option.

• For a chemical reaction to be balanced on both sides, mass should remain the same on both sides along with the number of atoms.
• In the correct option, both reactant and product side will have, one atom of barium, two atoms of chlorine and oxygen and four atoms of hydrogen.
• Barium chloride finds application in manufacturing of pigments, heat treatment salts etc.