Balance the follwoing chemical reaction in an acidic solution

__H2O(l) + __H^+(aq)+ OH^-(aq)+ __ CR2O7^2-(aq) + __ Cl^-(aq)---> __ Cr^3-+ __Cl2(aq)+ __H2O(l) + __H^+(aq) + __ OH^-(aq)

You need to place some arrows. Without arrows I don't know what is a reactant and what is a product. When you do that post something about what your problem is that you can't do these; that way, we can focus on helping.