complete and balance the reaction.

HCl + Ba(HO)2 ---

the 2 is suppose to be a sub 2 but can get it to do so on this computer and the --- is an arrow.

I believe it is BaClO + H2O is this correct?

I'm afraid not close.

Ba(OH)2 + 2HCl ==> BaCl2 + 2H2O
This is a double replacement reaction.