Question

Write the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution. Include physical states.

Answer 1

Balanced chemical reaction: 2HI(aq) + Ba(OH)₂(aq) → BaI₂(aq) + 2H₂O(l).

Ionic reaction: 2H⁺ + I⁻(aq) + Ba²⁺ + 2OH⁻(aq) → Ba²⁺ + 2I⁻(aq) + 2H₂O(l).

Net ionic reaction: 2H⁺ + 2OH⁻(aq) → 2H₂O(l).

Barium iodide is salt that dissolves in water, barium hydroxide is strong base that dissolves in water.

This is example of double replacement reactions(double displacement or metathesis reactions), two ionic compounds are exchanged, making two new compounds .