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Nguyenthimaimai
2 năm trước
Chứng mình HE=HO giúp mình với.
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Câu 1: Dãy các chất chỉ gồm các oxit tác dụng được với dung dịch Bazơ: A: P2O5, SO2, SO3, CO2 B. P2O5, CaO, Na2O, SO2. C P2O5, Fe2O3, Na2O, SO2. D: CaO, Fe2O3, Na2O, SO2 A. CuO B. CO2 C. SO2 D. SO3 Câu 2: Chất nào là Oxit Bazơ trong các chất sau: Câu 3: Để nhận biết hai khí không màu SO2 và CO2 ta dùng dung dịch: A. BaCl2 B. Na2O C. NaOH D. Ca(OH)2 Câu 4: Dụng dịch Ca(OH)2 phản ứng với chất nào sau đây: A. Dung dịch NaOH B. Dung dịch Ba(OH)2 C. CO2 D. CO Câu 5: Chất làm quỳ tím chuyển sang màu đỏ: A. dung dịch NaOH B. dung dịch HCl C. dung dịch CuSO4 D. cả A và B. Câu 6 :Cho 4,48 lít CO2 (đktc) tác dụng với dd Ba(OH)2 dư. Khối lượng chất kết tủa thu được là : 39,4 g B. 39,0 g                     C. 38,6 g                        D. 38 g Câu 7 : Chất tác dụng với nước tạo ra dung dịch bazơ là A.CO2. B. Na2O. C. SO2,                        D. P2O5 A. Al(OH)3 B. Ba(OH)2 C. Mg(OH)2 D. NaOH Câu 8: Cho các Bazơ : NaOH; Ba(OH)2 , Mg(OH)2, Al(OH)3. Bazơ không tan trong nước là: Câu 9: Chất tác dụng với CuCl2 là: A. NaOH B. Na2SO4 C. NaCl D. NaNO3 Câu 10: Có 3 lọ mất nhãn đựng riêng biệt 3 dung dịch của 3 chất: HCl, Na2SO4, NaOH . Chỉ dùng một hóa chất nào sau đây để phân biệt chúng ? A.Dung dịch BaCl2.        B.  Quỳ tím.           C.Dung dịch Ba(OH)2.      D.  Zn. Câu 11:  Nhiệt phân hoàn toàn 19,6g Cu(OH)2 , khối lượng chất rắn thu được sau phản ứng là: A.4 g. B. 8 g. C. 16 g.                     D. 32 g. Câu 12: Trường hợp nào tạo ra kết tủa khi trộn 2 dung dịch sau: A. NaCl và AgNO3 B. NaCl và Ba(NO3)2 C. KNO3 và BaCl2 D. NaCl và BaCl2 Câu 13: Nguyên liệu để sản xuất NaOH trong công nghiệp là: A.NaCl B. NaCl và O2 C. NaCl và H2 D.NaCl và H2O Các bạn giúp mik với ạ!!

Exercise 2. Mark the letter A, B, C or D so indicate the oorect anwer to cach of tthe REVISION- MID-TERM TEST GRADE I1 UNIT 1-THE GENERATION GAP C. ought to following questions 11.I live in a/an.with my parents ad y elder ster in the cotal A. extended family C. extended house D. ought to B. have to 32 Yeufmih your homework before you go to bed. C. should 3. This drink ist beneficial for health. Youdrink it too much. A doud D. mustn't B. have to C. ought not to $4. This warming sign indicates that youstep on the grass. 55. 1 think youdo exercise regularly in order to keep your body in good shape. D. ought not t 12. One advantage of living in aanis to strenghen relationship between young B. ought to not Bclear famitly D muclesr hose children and adults A nuclear family Cextended family 13. In my opinion, family members are responsible for A. the housework 14. My grandpa is the most conservative person in my family. He neverabo life C. don't have to A thouldat D. Both B anc B. mustn't 56.I will lend you some money, but you..pay it back to me next weck. A should $7. Hon feed the cats because her mother has done it already. A. bas to C. ought to A. must B. should D. mustn't B. muclear house D. extended house C. must B. have to D. Both A B. the chores C. must C. homework D. don't l B. doesn't have to A. gives his opinion C. gives his view 15. After graduating from university, I want to..my father's footsteps. A) follow in 16. In a nuclear family, both mother and father have responsibility for housekeepins and. A. thild care 1. Four generations living in the same roof will have different.of lifestyle. -- gaps B. Luckily, my parents are always willing to listen to my new ideas. They're very. profits Mary has a strong desire to make independent decisions. dependent My mother mistakenly believes that my fashion style breaks the norm of society. outine always look at this matter from a different viewpoint. int of view e find it unattractive when dress flashily. uriantly asuming too much junk food increases the risk of obesity. ease I extremely depressed as conflict occurs frequently amongst generations in my A and B C. ought to . The children spend too much time playing computer games. A. mustn't A he audiencesshow their tickets before entering the concert hall. D. Both B. must B. changes his mind D. keeps in mind C. shouldn't Acase you're suffered from the injury, you.see the doctor today. had better B. ought to not D. ha B. succeed in C. ought Water park is free for kids under 6 years old, so you..pay money for yous A. have to C. go after B. must D. de D. keep up C. should kercise 6. Mark the letter A, B, C, or D to indicate the underlined par correction in each of the following questions. (A) Lwill leave the party early (B) because (C) Lmust (D) studying for .T(A) stayed up (B) late last night because I (C) mustn't go to school (L 13. We (A) qught to not play football (B) as (C) it's raining (D) Qutside. 14. You (A) mustn't (B) to drive a car (C) if you (D) don't have a driving 75. If you (A) want some useful (B) advice, you (C) have better talk to y (D) about your problem. 76. I (A) had (B) stay at home 3 days (C) due to (D) snowing heavily 77. Because of his (A) poverty, he (B) has to (C) struggling to (D) ma 78. (A) According to the rules (B) of this game, you (C) had better n 79. If you want (A) to get a higher mark in the next test, you (B). more effort (D) into vocabulary. 80. We (A) shouldn't make an appointment (B) with this doctor. whenever you (D) want. 81. Look at the sky, it (A) is going to rain. (B) Thus, you (C) raincoat. B. homework B. mustn't C. childcare B. rules D. generation gap C. manners D. viewpoints B. issues C. views D. merits B. self-confident C. self-confessed D. self-determining B. barrier C. rule D. conflict B. view from point C. idea D. opinion B. ostentatiously C. cheaply D. fashionably B. reduce C. rise D. raise 82. I (A) ought to go home now (B) because I don't want (C) to w 83. (A) As our teacher said yesterday, we (B) ought to not worr test. (D) Take it easy. 84. This competition is (A) optional, so we (B) not (C) have to 85. (A) Despite having (B) a little chance to win, you (C) s B. comes up C. comes in D. comes into on ERAMMAR E. Mark the letter A, B, C, or D to indicate the correct answer to each of the nuestions

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