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

The reactants given are HI, an acid and Ba (OH) 2 a base. The products are expected to have a salt and water. The type of reaction existing between the two reactants is double substitution type of reaction. In this case, the reaction is expressed as

HI (aq) + Ba (OH) 2 * = BaI2 (s) + H2O (l)