Cho 2,24 lít H2 tác dụng với 3,36 lít Cl2 thu được khí X. Cho X tác dụng với dung dịch AgNO3 dư thu được 11,48gam kết tủa trắng. Tính hiệu suất của phản ứng ? giúp mình với, please!!!!

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I. Rewrite the following sentences in the passive form. (7 marks) 1.They will prepare the party at the weekend. The party………………………………………. 2.She will buy all these books this year. All these books…………………………………. 3.The maid will clean the windows. The windows…………………………………….. 4.My friends buy some comic books in this shop. Some comic books …………………………………… 5. Someone collects the garbage every day. The garbage……………………………………………… 6. My father waters these flowers every morning. These flowers……………………………………………. 7. They break the glass into small pieces. The glass……………………………………………….. II. Choose the word or phrase that best completes each unfinished sentence below. (3 marks) 1.It is ______ to park in the center of Newtown. A. impossible B. impossibility C. impossibilities D. impossibly 2.I am delighted ________you passed your exam. A. that B. to C. in order to D. so that 3.Is the rubbish ______ every day? A. collect B. collecting C. collected D. be collected 4.We were delighted ________your letter yesterday. A. to get B. got C. getting D. get 5.Let’s play tennis instead of ________television. A. watch B. watching C. watches D. to watch 6.Sooner or later a satellite ________by a large piece of rubbish. A. will destroy B. will destroyed C. will be destroyed D. will been destroyed