题目

A man and his wife had a dog to keep their house．When they went out，they always left the dog inside the house． One evening they wanted ___1___ to the cinema，___2___ they left the dog in the house and locked the door and their ___3___．They ___4___ their car．When the film finished，they came back home．They opened the gate and put the car ___5___．But when they came to the front door，they found that part of the glass ___6___ the door was broken．The door was unlocked and ___7___．A robber! They went in and quickly looked in all the rooms to see ___8___ things the robber had ta（1）某温度（T℃）时，水的KW=10-13，则该温度（填“大于”“小于”或“等于”） 25℃，其理由是 ．将此温度下pH=11的NaOH溶液aL与pH=1的H2SO4的溶液bL混合，若所得混合液为中性，则a：b= ．（2）已知25℃时0.1mol?L-1醋酸溶液达到平衡（CH3COOH?H++CH3COO-）时的pH约为3，如果在此溶液中加入等体积的pH为5的盐酸，则电离平衡 （填“向左移动”“向右移动”或“不移动”）；若向原醋酸溶液中加入少量醋酸钠晶体，待晶体溶解后溶液的pH （填“增大”“减小”或“不变”）．