2CrO42(aq) + 2H+(aq) --- Cr2O72(aq) + H2O(l) By adding NaOH the reaction favors the reactants because the solution just stayed yellow.

2CrO42−(aq) + 2H+(aq) <---> Cr2O72−(aq) + H2O(l) the reaction favors the reactants because the solution just stayed yellow."How does he relate to the change,if any, in the color of the solution. include equations for reactions in your explanation." I'm just not 100% confident on how to do what its asking there.