Question

Aqueous hydrochloric acid reacts with aqueous sodium sulfite to form aqueous sulfurous acid and aqueous sodium chloride . Write a balanced chemical equation for this reaction.

Answer 1

Answer:

Balanced reaction: $Na_{2}SO_{3}(aq)+2HCl(aq)\rightarrow H_{2}SO_{3}(aq)+2NaCl(aq)$

Explanation:

• It is an example of double displacement reaction.
• Here anions and cation of two reagents interchange between themselves.

• 2 molecules of HCl (hydrochloric acid) reacts with 1 molecule of $Na_{2}SO_{3}$(sodium sulphite) to produce 2 molecules of NaCl (sodium chloride) and 1 molecule of $H_{2}SO_{3}$ (sulphurous acid)
• Balanced reaction: $Na_{2}SO_{3}(aq)+2HCl(aq)\rightarrow H_{2}SO_{3}(aq)+2NaCl(aq)$