2021-2022学年第一学期福州市高三期末质量抽测语文答案

2021-2022学年第一学期福州市高三期末质量抽测语文答案，目前我们趣对答案已经整理了2021-2022学年第一学期福州市高三期末质量抽测语文答案的各科答案和试卷，更多试卷答案请关注本趣对答案。

27.(1):O::C∴:O:(2分)(2)NH3(2分)(3)CO2NH3(各1分)(4)NH4CNH3↑+HCl↑(2分)(5)①MgCl2+2H20=Mg(OH)2￥+2HCl↑(2分)Mg(OH)2=MgO+H2O(2分)②能防止NH3和HCl因接触而反应生成氯化铵(2解析:(1)碳酸氢钠分解生成碳酸钠、水和二氧化碳气体则X为二氧化碳,电子式为:O:C:O:;(2)由于二氧化碳在水中溶解度较小,而氨气在水中溶解度很大,所以为了尽可能生成 NaHCO3,应该尽可能增大二氧化碳溶解度,而先通入氨气使溶液显碱性,可提高二氧化碳溶解度(3)根据流程图,反应Ⅱ中生成的二氧化碳和反应Ⅲ生成的氨气可以参与反应I,据此判断参与循环使用的气体有CO2、NH3(4)所得产品Na2CO中不会含有NH4Cl,因为氯化铵受热容易分解NH4Cl-NH3+HCl;(5)①步骤ⅱ实际上要经过加热和高温两步反应,“加热步骤中促进氯化镁水解制得HCl.“高温”步骤使得氢氧化镁分解得到MgO,化学方程式分别为MgCl2+2H2Oy1)2y+2HCl↑,Mg(OH24MgO+H, O:②过程Ⅲ分两步得到NH3和HCl,可以防止NH3和HCl反应生成氯化铵,比一步得到NH3和HCl要好

第三节One possaParagraph 1After Jach had been gone from the bank for a while, thearms began to ring. The police arrived at the bank vcrquickly, only to find no one there. The next day was areally special day for the town, which was filled with newspaper and TV reporters covering the strange theft. Theclerks at the bank were busy discussing the case, ofcourse, including Jack. The police could only promise tocatch the thieves as soon as possible, even though no clueshad been found vetParagraph 2But the most unlucky man was the manager of thebank. an old man. heblame and was removed from his position. At last, withJack’ s wife was savedack felt guilty about theHe could not forget what he had done to the old man. Hisguilt deepened as time went by. Finally, he turned himselfin to the police and accepted his punishment