Write a balanced equation for the double-replacement neutralization reaction described, using the smallest possible integer coefficients. a reaction occurs when aqueous solutions of barium hydroxide and perchloric acid are combined.

The balanced chemical equation is given below.

Explanation:

Double-displacement reaction is defined as the reaction in which exchange of ions takes place. The general equation representing this reaction follows:

The balanced chemical equation for the reaction of barium hydroxide and perchloric acid follows:

By Stoichiometry of the reaction:

1 mole of barium hydroxide reacts with 2 moles of perchloric acid to produce 1 mole of barium chlorate and 2 moles of water molecule.

Hence, the balanced chemical equation is given above.

i'm assuming that the correct answer is indeed the first one/ "a"..