2022英语周报高考第135答案

22.(14分)I.(1)C(1分)2:1(2分)(2) gedcb(2分)Ⅱ.(3)检查装置的气密性(1分)k3(2分)出现红褐色液体(2分)Ⅲ.(4)2NOCl+H2O=2H++2C1-+NO↑NO2↑(2分)(5)90%(2分)【解新】工.(1)实验室制备氯气是加热二氧化锰和以浓盐酸的混合物应该选择C装置为Cl2发生装置,反应的化学方程式为MnO2+4HCl(浓)二MnCl2+Cl2↑+2H2O,被氧化的HCl与被还原的MnO2的物质的量之比为2:1。(2)二氧化锰和浓盐酸共热制得的氯气中含有HCl和水蒸气,需用饱和食盐水除去氯化氢,再用浓硫酸于燥C2,用向上排空气法收集Cl2,装置的连接顺序为 afgedcbi(h)。Ⅱ.(3)组装好实验装置后,应先检查装置的气密性,然后依次装入试剂打开k2、再打开k,通入一段时间气体,其目的是为了排尽三颈烧瓶中的空气,防止NO NOCI变质。两种气体在Z中发生反应生成NOCl,冷却后变成红褐色液体Ⅲ.(4)亚硝酰氯与水反应的离子方程式为2NOCl+H2O=2H++2C1-+NO↑+NO2↑(5)根据关系式:Ag+~C~NOCl可知,n(NOCl)=22.50×10-3L×0.8mo·L-×250mL25.00mL0.18mol,则亚硝酰氯(NOCl)的质量分数为18mol×65.5g·mol-113.10g100%=90%

第三节One possible versionParagraph 1Then one day when we got to the school with his usualbig smile, he started to lean towards me. But I put my handup and said, No, Dad. It was the first time I had evertalked to him that way and he had this surprised look onhis face. I said, 'Dad, I am too old for a goodbye kiss. Iam too old for any kind of kiss, My dad looked at me forthe longest time, and his eyes started to lear. I had neverseen him cry. He turned. ' You are right, ' he said."Youare a big boy .. a man. I will not kiss you anymoreParagraph 2Tears began to well up in franks eyes, as he spokeIt wasnt long after that when my dad went to sea andnever came back. I looked at Frank and saw that tearswere running down his cheeks. Frank spoke again."Guysyou dont know what I would give to have my dad give mejust one more kiss on the cheek

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