... 4.That officer announced that the meeting was delayed until next week.5.He discovered that this cotton was grown in Egypt.6.They promise that the performance will start on time.7.He recommends that ... business trip to England.4.It was announced that the meeting was delayed until next week.5.It was discovered that this cotton was grown in Egypt.6.It is promised that the performance will start ... the committee).13.The broken cup is hidden in the drawer (by him).14.This room is kept tidy (by them) all the time.15.The party was voted a great success(by them).16.Ann was given some bananas...
... business trip to England.4.That officer announced that the meeting was delayed until next week.5.He discovered that this cotton was grown in Egypt.6.They promise that the performance will start ... director is going to take a business trip to England.4.It was announced that the meeting was delayed until next week.5.It was discovered that this cotton was grown in Egypt.18.She bought some ... the committee).13.The broken cup is hidden in the drawer (by him).14.This room is kept tidy (by them) all the time.15.The party was voted a great success(by them).16.Ann was given some bananas...
... Al2O3 đã tan trong TN2 . Trong TN2 , ngòai lượng Al2O3 có sẵn trong TN1 tan hết , còn tan thêm được 2g Al2O3 .Như vậy trong TN1 Al2O3 đã tan hết , lượng chất rắn không tan trong ... tất cả 16+2=18g Al2O3 tan trong dd KOH . Theo PT ta có : số mol K2O = ½ số mol KOH tan = 18:102 (mol)Khối lượng K2O = (18:102 ). 94 = 16,59g . Bài t an về lượng chất dưCho ... dư khuấy kỹ thấy còn 15g chất rắn không tan .TN2: Nếu cho thêm vào A một lượng Al2O3 bằng 50% lượng Al2O3 trong A ban đầu , rồi lại hòa tan vào nước dư .Sau TN còn lại 21g chất rắn...
... sản ra sau 1 phút(ĐS:30V,5Ω,1500J,Ang=1800J ,H=83.3 %) Bài7: cho mạch điện như hình vẽ Cho bi t R1=16Ω,R2=24Ω,R3=10Ω,R4=30Ω.Cường độ dịng điện qua R4là 0,5ATụ điện có điện dung...
... change.7. Under no circumstance will Miss Weaver be offered the job.8. Under no circumstance should you send money to us by post.9. Under no circumstance can we exchange tickets.10. On any ... does the company.XI. Rewrite each sentences so that it contains the word or words in capitals, and so that the meaning stay the same1. If Smith were to resign , I might stand a chance of getting ... under any circumstances.……………………………………………………………………………………9.We can’t exchange tickets in any circumstances.……………………………………………………………………………………10.I won’t go out that way to visit him again on my account!……………………………………………………………………………………IV....
... formula________ his students.55. The English contest organized ________ our teachers is an annual event in my school. 56. The participants must find ________ all the answers in order to go in the next ... the Earth. 12. Courses like shoemaking or glass engraving provide people ________ practical skills they can do with their hands.13.She is famous _______ her beautiful face and sweet voice.14. ... politics.25. I’m bit short_________ money. Can you lend me some?26. I was delighted___________ the present you gave me.27. She was sad because he was very rude_________ her.28. She was very angry_________...
... change.7. Under no circumstance will Miss Weaver be offered the job.8. Under no circumstance should you send money to us by post.9. Under no circumstance can we exchange tickets.10. On any ... under any circumstances.……………………………………………………………………………………9.We can’t exchange tickets in any circumstances.……………………………………………………………………………………10.I won’t go out that way to visit him again on my account!……………………………………………………………………………………IV. ... does the company.XI. Rewrite each sentences so that it contains the word or words in capitals, and so that the meaning stay the same1. If Smith were to resign , I might stand a chance of getting...
... §ång ViÖtChange these sentences into passive voice:1. They cannot make tea with boiled water.-> ……………………………………………………………………………….2. He is not instructing all the workers of the plan at the ... ……………………………………………………………………………….12.The children did not look at the animals with strange eyes. -> ……………………………………………………………………………….13.They have not provided the victim with food and clothing. -> ……………………………………………………………………………….14.People ... the papers into different shapes.-> ……………………………………………………………………………….49.Weeds do not cover the riverbank. -> ……………………………………………………………………………….50.Smoke did not fill the room. -> ……………………………………………………………………………….The...
... EXERCISE 1 CHUUYEN SANG CAUBIDONG 1 Someone broke this mirror last night.……………………………………… 2 Someone washes the towels ... very hot countries.……………………………………………….5 They pay the office workers weekly.………………………………………6 Someone bought all this cheese in France.………………………………………………7 Someone found Emily's bike in ... river.…………………………………………… 8 Someone visits most of the prisoners once a week……………………………………………… 9 Someone cleans this car every week.………………………………………10 They play a lot of sport on the beach.…………………………………………...
... 8. I’m going to invite my friends to come over ……………. dinner tonight.9. Next summer, my family will have a vacation ……………. Thailand and stay there …………….one week. 10. I’m busy just...
... một thanh Al tiếp xúc với 1 thanh Zn trong dung dịch HCl, sẽ quan sát được hiện tượng: A. Thanh Al tan, bọt khí H2 thoát ra từ thanh Zn.B. Thanh Zn tan, bọt khí H2 thoát ra từ thanh Al.C. ... thanh cùng tan và bọt khí H2 thoát ra từ cả 2 thanh.D. Thanh Al tan trước, bọt khí H2 thoát ra từ thanh Al.90. Có 2 chiếc thìa sắt như nhau, một chiếc giữ nguyên còn một chiếc bị vặn cong ... (trừ hidro) và IIA B. IIIA đến VIIIAC. IB đến VIII B D. Họ lantan và họ actini 61. Cấu hình của nguyên tử hay ion nào dưới đây được bi u diễn không đúng?A. Cr (Z = 24) [Ar] 3d54s1 B. Mn2+...
... NaH2PO4C. Na2HPO4D. Na3PO4Câu 26: Để phân bi t các dung dịch riêng bi t chứa trong các lọ mất nhãn gồm : NH4NO3, (NH4)2 CO 3,AlCl3, BaCl2 và FeCl2 bằng một thuốc thử, ... dung dịch AlCl3.Câu 22: Hòa tan Fe trong HNO3 dư thấy sinh ra hỗn hợp khí chứa 0,03 mol NO2 và 0,02 mol NO (làsản phẩm khử duy nhất). Khối lượng Fe bị hòa tan bằng: (cho Fe =56).A. 2,24 ... Chỉ dùng một hoá chất nào sau đây để phân bi t các dung dịch BaCl2, Na2SO4, Na3PO4, HNO3chỉ bằng 2 lần thử:A. Quì tím B. Dung dịch Na2 CO 3C. Dung dịch AgNO3D. Dung dịch NaClCâu...
... 1:'`)Wab(W)ac!d(3(aKE!8/('e(3#f6!g!M!!O!=a!AhK!O!!O!!AhK!O)!O)!AhK!O!=he(3ia3!jak7(0!fi3!M!l!(I#j!Sa3K!N aN !amACO,!(=)#JMnoaAp(M(IaaAB!am#f!fQ!qDm!ACl!aApaq*m(IaAB!A(3!=aS(!l!fr)Usn!aS(Q!(=#tqBài ... ao)vsE(3`</)baRƒ#f5<200 BÀITẬP VẬT LÍ HÓC BÚA VỚI HƯỚNG DẪN VÀ LỜI GIẢI(200 Puzzling Physics Problems with Hint and solution) !"!#$%...