2022高三英语周报41答案

2.(16分)(1)Ba(NO3)2(1分)HCl(1分)HNO2(1分)Br2(1分)AgNO2(1分)(2)SO-(1分)SO(1分)C(1分)3)sO+2H+-B+sO2↑+H12O(2分)M8米6中和OH,防止对Cr的检验产生干扰(2分)〔5)会使SO对SOz的检验产生干扰,不能确定sO3-、SO是否存在(2分)(6)SO2+Br2+2H2O-4H++SO+2Br(2分)【解析】(1)由图可知,试剂①是硝酸钡溶液,试剂②是稀盐酸,试剂③是稀硝酸,试剂④是溴水试剂⑤是AgNO3溶液(2)气体E是SO2,现象a检验出的离子是SO万-,沉淀B是BaSO4,现象b检验出的离子是SO-,现象c产生的白色沉淀是AgCl;检验出的离子是Cl-(3)白色沉淀A的成分为BaSO和BaSO3,加人稀盐酸反应的离子方程式为BaSO3+2H+一Ba2++SO2↑+H2O(4)无色溶液C加稀硝酸的目的是中和OH,防止对C1的检验产生干扰。(5)白色沉淀A若加稀硝酸而不加稀盐酸,会将SO氧化为SO-,对SO的检验产生千扰,不能确定SO3SO-是否存在(6)SO2通入溴水中发生反应的离子方程式为SO2+Br2 +2H20=4H++SO2-+2Br-

文章大意:本文是一篇记叙文。文章介绍了一个名叫 Sneha Sharma的女孩通过自己的努力和抗争获得成功的24.答案D命题透析推理判断题思路点拔根据第一段中的“ It wasn' t easy as Sneha had to battle with her family and societal set ideas to walk orwhat was seen as an unconventional career path."和第二段中的“… her parents didn’ I approve of her passion.Theywanted her to focus on academics because they considered racing dangerous."可知, Sneha的父母认为她的梦想有点离经叛道。25.答案A命题透析细节理解题。思路点拨根据第二段中的“ I told myself that studies were also a preference along with racing”可知, Sneha认为学业也很重要答案D命题透析推理判斷题思路点拨根据第三段中的“ln2007, she went to San Francisco for flying classes.. A vear later, she joined IndigAirlines to nly airbus320.“和最后一段中的“ At the end of2019, Sneha,29, a brand ambassador, has her2020calendar charted out."可知, Sneha生于1990年,2008年 Sneha加入靛蓝航空公司成为飞行员时18岁。27.答案IANYI CULTURE命题透析推理判斷题。思路点拔根据第一段中的“ Sneha had to hattle with her family and societal set ideas”和第三段中的“ A normalday involved a lot of hustle”可知, Sneha是努力而且不断奋斗的人。

以上就是2022高三英语周报41答案，更多英语周报答案请关注本网站。