2022 英语周报 七年级 外研综合 7答案

23.(16分)(1)H2O2分解时,MnO2比Fe2O3的催化效率更高(3分(2)碱(2分)BO2+2H+0-一BsO+H2Q2(3分)BaSO的生成使平衡右移,有利于H1O2的生成酸性环境有利于H2O2的存在(4分,其他合理答案也给分)(3)1.33×10(4分)【解析】(1)甲组实验Ⅱ比实验反应速度快,甲组得出的结论是BQ2分解时,MO2比F催化效率更高。(2)由图可知,相同条件下,H2O2在碱性环境下放出气体速率较快;BaO2固体与硫酸溶液反应的离子方程式为BaO2+2H++SO?BaSO4+H2O2,BaSO4的生成使平衡右移,结合H2O2在酸性环境下分解较慢这一事实可判断该方案成立。(3)反应达到平衡时,v=,即k正·c(H2O2)c(OH-)=k逆·c(H2O)…c(HO2),E=c(H2O)·c(HOz)_c(H2O)·c(HO2)·c(Hc(H2O2)·c(OH)c(H2O2)·c(OH-)·c(HK·cH2O)2.4×10-12×1000K=-101x181.33×104。

语篇导读】本文是一篇应用文,介绍了九不剧以及它们的创作者。1A【解析】细节理解题。根据 Australian ComedCosi(5th Round )H Date: April 12-16 7: 30 p. m.:Venue: Beijing Poly Theatre Price: 800-1, 500 yuan可知,答案为A2.C【解析】细节理解题。根据 Twelfth Night By TNTTheatre Britain #f Viola (who pretends to be a boy fallsin love with Orsino. But Orsino in turn is in love withOlivia. When meeting"Viola, Olivia falls in love withher, thinking she is a man.可知,答案为C3.D【解析】细节理解题。根据 Jazz WeekendThomas Enhco Piano Recital #f He is spotted by PeterErskine, who offer to help with Thomas Enhco's firstyCD.In 2004-2005, Thomas creates and records his fiafirst album, esquisse, which is released in200可知是答案为D。

以上就是2022 英语周报 七年级 外研综合 7答案，更多英语周报答案请关注本网站。