Determine the hybridization state of the boron atom. Predict the O-B-O bond angle and then suggest a reason why the actual bond angle might deviate from the predicted value in this case. The lone pairs have not been drawn. Draw all of them.

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -