Write molecular, ionic, and net ionic equations.

HIO2(aq) + Ba(OH)2(aq) -->

This is a typical acid + base reaction to form a salt + H2O.

2HIO2(aq) + Ba(OH)2(aq) ==> Ba(IO2)2 + 2H2O
Net ionic is
2H^+(aq) + 2OH^-(aq) ==> 2H2O(l)

To write molecular, ionic, and net ionic equations, we first need to identify the individual ions and compounds present in the reaction.

The given reaction is:
HIO2(aq) + Ba(OH)2(aq) -->

Step 1: Write the molecular equation.
In the molecular equation, we write all the reactants and products as complete compounds without any indication of their ionic character.

The molecular equation for the given reaction is:
HIO2(aq) + Ba(OH)2(aq) --> Ba(IO2)2(s) + 2H2O(l)

Step 2: Write the ionic equation.
In the ionic equation, we break down the ionic compounds into their constituent ions. However, only the ions that participate in the reaction will be written explicitly. The spectator ions, which do not undergo any change, will be excluded.

The ionic equation for the given reaction is:
2H+(aq) + IO2^-(aq) + Ba^2+(aq) + 2OH^-(aq) --> Ba(IO2)2(s) + 2H2O(l)

Step 3: Write the net ionic equation.
In the net ionic equation, we eliminate the spectator ions from the ionic equation. These are the ions that appear on both sides of the equation and do not undergo any chemical change.

The net ionic equation for the given reaction is:
2H+(aq) + IO2^-(aq) + 2OH^-(aq) --> Ba(IO2)2(s) + 2H2O(l)

This net ionic equation represents the core chemical change that occurs in the reaction, without including any spectator ions.