2022英语周报高一牛津A答案

第二节(满分25分)Soon I created my website go. picking up. com. On the website I launched a rubbish removacampaign. I described my purpose-calling on volunteers to pick up rubbish. I posted pictures ofrubbish littered about on the website, which could not only illustrate the severe situation but alsoshow that a large number of volunteers were in great need. Besides, I shared the story of VLady who influenced me so much. Surprisingly, my website gradually became a big hit on theInternetMore and more people put on vests with their own names. Volunteers could be seen pickinup rubbish in their spare time. The yellow vests made beautiful scenery in the park or on thestreet. With our joint efforts the environment became better and better What delighted me mostwas that peoples awareness of environmental protection was improved. The rubbish removalcampaign was a big success. Thanks to Vest Lady who rooted the sense of environmentalprotection in my mind, more people became Vest Lady

35.【答案】(1)5d°6(1分)ds(1分)(2)<(1分)>(1分)(3)8(2分)CN(1分)(4)ZnF2是离子晶体,含有离子键,ZnCl2、ZnBr2、Znl2是分子晶体,分子间只存在范德华力,相对分子质量越大,范德华力越大,熔点越高;离子键比范德华力强,ZnF2的熔点最高(2分)(5) SaUcE2(2分)AuCl2、AuCl(2分)(6)4×197N4×(408×10-0)3(2分)【关键能力】分析与推测、归纳与论证能力【解题思路】(1)基态铜原子的价电子排布式为3d4s,由此推知金原子的价电子排布式为5d6s,位于ds区。(2)基态Cu、Zn原子的价电子排布式分别为3d4s4、3d04s2,根据洪特规则,全充满结构比半充满结构稳定,故铜的第一电离能小于锌,锌离能小于≡N|中含1个的第二电离能小于铜。(3)[C≡N]中含1个a键,又因为C原子提供1个孤电子对与Zn2+形成配位键,配位键也是o键,故1mol[Zn(CN)4]2中含8molσ键。(4)氟化锌是离子晶体,其他三种晶体是分子晶体,离子晶体含离子键,分子晶体存在范德华力,离子键比范德华力强;相对分子质量越大范德华力越大,熔点越高。(5)根据晶体M中电荷守恒和透视图知,金和氯形成的2种配离子分别为AuCl2、AuCl,金元素分别显+1价、+3价。1个晶胞中有8个AC位于顶点和1个AuCl位于体内,共有2个AuCl1;4个AuCl2位于棱上,2个AuCl2位于面心,共有2个AuCl2;8个Cs·位于面上,共有4个Cs′。M中Cs、Au、Cl的粒子个数之比为4:412=1:1:3,M的化学式为 SaUcE3。(6)金晶体是面心立方堆积,1个晶胞含有8x8+6×2=4个金原4×197子则晶体密度pM4×(408×10-0)38m-3。

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