... dịch NaCl và CuSO4, nếu dung dịch sau khi đđiện phân hoà tan Al2O3 thường xảy ratrường hợp nào sau đđâya.NaCl dư b. NaCl dư hoặc CuSO4 dư c. CuSO4 dư d. NaCl và CuSO4 bị đđ.phân ... 0,02M C. 0.2M ; 0,3M d. 0.1M; 0,2M3. Sự điện li (2).Câu 5. Lượng SO 3 cần thêm vào 100 gam d.d H2 SO 4 10% để được d.d H2 SO 4 20% là: a. ≈9,756g b. ≈5,675g c. ≈3,14g d. ≈3,4gCâu ... hoá khử, cân bằng hoá học: (2)Câu 3. Hoà tan 2,4 gam FeS2 bằng H2 SO 4 đặc, nóng. Khí thoát ra là SO 2. Thể tích của H2 SO 4 5M cần để hoà tan vừa đủlượng FeS2 ở trên là:a. 28ml. b....
... chất sau đây: O2, SO 2, H2S tác dụng với nhau từng đôi một thì các chất sau phản ứng gồm:A. SO 3, S, H2O, SO 2.B. SO 2, SO 3, H2O. C. SO 2, S, H2O. D. SO 2, SO 3, S.Câu 9. Hỗn ... sơ đồ trên:A. (X: SO 2 ), ( Y: H2S), (Z: Na2S). B. ( X: NaHSO3), (Y: SO 2), (Z: S).C. (X: H2S), (Y: S), Z ( Na2 SO 3). D. ( X: SO 2), ( Y: H2 SO 4), ( Z: BaSO4).Caâu 11. Cho ... là chất khử, hoặc oxi hóa.NaCl (rắn) o2 4H SO (dac,t )(1)+→HCl Fe(2)+→ FeCl2 o2 4H SO ,(dac,t )(3)+→Fe2 (SO 4)3 2BaCl(4)+→FeCl3.A. (1), (4)....
... phẳng ABC Cung AB ,AB AB Đoạn thẳng AB AB Vector AB Vuông góc Song song 31 1 2 1 2 1 211 2 1 22log log log , 0 ;log log ... his work on the normal distribution and probability theory. He was elected a Fellow of the Royal Society in 1697, and was a friend of Isaac Newton, Edmund Halley, and James Stirling. Among his ... vị lặp bằng: 121212, , ,! ! ! ,nkkknP n n nn n nn n n n k laø so loaïi 3. Chỉnh hợp (không lặp) Cho n phần tử khác nhau, kn. Ta gọi một chỉnh hợp chập...
... Negative not as /so + adj/adv + as (không bằng/như)Ex: - This watch is not as /so expensive as mine. (= my watch) (Đồng hồ này không đắt như của tôi.) - She does not sing as /so well as her sister. ... best10. I love you_____________ than I can say. A. much B. many C. more D. the most COMPARISONSI. Comparison of equality 1. Affirmativeas + adj/adv + as (bằng/như)Ex: - I’m as tall as Tom. ... sport in your country? (popular)6. Everest is the_____________ mountain in the world. It is ______________ than any other mountains. (high)7. We had a great holiday. It was one of the______________...
... B. because of C. because D. so 26. Joe seemed to be in a good mood, ____________ he snapped at me angrilywhen I asked him to join us.A. but B. so C. for D. and27. Some people really enjoy swimming ... not alwaysdistributed where the large (40) ………… centers are. Some regions get enoughrain. But it is all in one or two short rainy reasons.36. A. with B. without C. for D. inThong Linh High School8 ... physical exercise if you want tobe healthy and strong, and for that reason you often concentrate on just one sportwith so (37) _________ enthusiasm that in the end you can’t live without it....
... school during the day, so I work night ……………. in a restaurant as my part time job.A. time B. hours C. shift D. periodCâu 6: It’s not easy to change people’s toward a certain problem.A. idea ... A. suitable B. family C. confidence D. solutionChọn phương án tốt nhất để hoàn thành các câu sau: (8đ)Câu 3: It’s not easy to change people’s toward a certain problem.A. attitude B. idea C. ... idea B. opinion C. thinking D. attitude Class:__________________ Test on English Noäi dung ñeà so : 002Name:__________________ Time: 15 minutes. Chọn phương án tốt nhất để hoàn thành các câu...
... trí khác với những từ còn lại.(1đ)Câu 13: A. geographical B. engineering C. archeology D. philosophyCâu 14: A. physical B. chemistry C. primary D. academic Chọn phương án tốt nhất để hoàn thành ... 1: A. academic B. physical C. primary D. chemistryCâu 2: A. archeology B. geographical C. philosophy D. engineeringChọn phương án tốt nhất để hoàn thành các câu sau. (6đ)Câu 3: _____ must satisfy ... lại.(1đ)Câu 1: A. physical B. chemistry C. academic D. primaryCâu 2: A. geographical B. philosophy C. archeology D. engineeringHãy xác định một lỗi sai trong số các từ/cụm từ được gạch dưới...
... 10: The company was…………. because of a shortage of orders.A. resolved B. dissolved C. involved D. solvedCâu 11: He is now so weak that the doctors are ………………… about his chances of making ... pessimisticCâu 8: The company was…………. because of a shortage of orders.A. involved B. solved C. resolved D. dissolvedCâu 9: Are you free Saturday?A. at B. on C. in D. forCâu 10: His car is ... didn’t succeed.Câu 7: His car is different mine.A. from B. about C. in D. toCâu 8: He is now so weak that the doctors are ………………… about his chances of making a full recovery.A. pessimists...
... dancing lessons. A dad is the person whom you ask for pocket money. He is the one who (36) ……… about the timeyou spend talking on the phone, as he has to pay for the bills. Dad is someone who ... dancing lessons. A dad is the person whom you ask for pocket money. He is the one who (38) ……… about the timeyou spend talking on the phone, as he has to pay for the bills. Dad is someone who ... makeCâu 13: Uncle Nam is always ………………… to help me with my maths lessons.A. sorry B. next C. willing D. merryCâu 14: Children who are isolated and lonely seem to have poor language and …………. .A....
... you should be relaxed and so one of the best things to do is to take regular (26)_____ even if they are only for a few minutes. During revision time, you (27)_____ take some time off to go for ... time. Perhaps the interviewer disproved of or disagreed with something you said. Perhaps they just glance at your application and saw something that made it easy to choose between you and another ... tiết có vị trí khác với những từ còn lại.Câu 38: A. physical B. compulsory C. cinema D. carefullyCâu 39: A. geography B. philosophy C. examination D. requirementCâu 40: A. application B. economics...