Đáp án:
`a,NH_3→ N^(-3 )`
`b,CO→C^(+2)`
`c.CO_2=C^(+4)`
`d,H_2S→S^(+2)`
`e) SO_2→S^(+4)`
`f) SO_3→S^(+6)`
`h) NaCl→Na+:Cl-`
`g)H_2SO_4→S^(+6)`
`i) NO → N^(+2)`
`j) NO_2 → N^(+4)`
`k) CaCO_3 →Ca^(+2), C^(+4)`
1. We are all _____ that you passed your English exam. Congratulations! A. upset B. afraid C. delighted D. certain 2. Reading many books _____ you widen your knowledge. A. helps B. helping C. help D are helped 3. Can you tell me where _____? A. we shall meet B. shall we meet C. we meeting D. we to meet 4. The temple _____ many years ago is old and mossy now. A. building B. was built C. built D. builds 5. Would you mind if she _____ the room with you? A. cleans B. tidies C. stayed D. shared 6. He came to my house _____ help me do the assignments. A. to not B. so as not to C. not so as to D. so as to not 7. Hoa is reading short stories _____ Jack London. A. of B. from C. by D. with 8. His car has the similar color _____ my uncle’s. A. with B. like C. as D. to 9. The natural resources are limited _____ we recycle used things. A. so B. because C. and D. but 10. _____ for some minutes and you’ll feel more _____. A. Relax B. Relaxing C. Relaxation D. To relax
Trình bày chi tiết Ko viết giấy
Calli ''Hiền'' NL : Mình có biết văng tục , chửi người khác là gì đâu :< Sao ai cũng bào mình hung dữ hoài zậy :( ?
vẽ chibi / anime cute :33 NL: Mình là con lợn cute nhất hoidap :'3 * bị bắt ép phần ngoài lề thui chứ tui hong mún ghi đâu ;-;; *
phân biệt ẩn dụ tu từ và ẩn dụ từ vựng
minnhf cần gấp làm giúp minh vs
vẽ lại bé bơ này nhưng màu sắc khác nha
làm giúp em với mn em đang cần gấp ạ
1. Prepare the lesson carefully or you will get bad mark. (Inversion) ___________________________________________________________________________ 2. Mix blue and yellow, you get green. ___________________________________________________________________________ 3. Hurry or you'll be late for school. (Unless) ___________________________________________________________________________ 4. I don’t know Korean so I couldn’t talk to Koreans. (Inversion) ___________________________________________________________________________ 5. You can use my car but you must drive carefully. (As long as) ___________________________________________________________________________ 6. I don't win a lot of money, so I can't spend most of it travelling round the world. ___________________________________________________________________________ 7. I am short; that's why I won't be a pilot. ___________________________________________________________________________ 8. If I were you, I would eat less. (inversion) ___________________________________________________________________________ 9. I didn't tell her any good news because I wasn't here. ___________________________________________________________________________ 10. I was wearing a seat belt, so I didn't have a bad accident. ___________________________________________________________________________ 11. He isn't a rich man now because he didn't take my advice. ___________________________________________________________________________ 12. Last night I had an accident because I wasn’t careful. (Inversion) ___________________________________________________________________________ 13. You help me so I can finish my work. ___________________________________________________________________________ 14. She encouraged him and he succeeded. (But for) ___________________________________________________________________________ 15. The teacher explained and we understood. (without) ___________________________________________________________________________ 16. Travelling by car is convenient in case you have somewhere to park. (Providing) ___________________________________________________________________________ 17. She must study hard to pass the exam. (Provided) ___________________________________________________________________________ 18. The meeting can be cancelled because it snows heavily. (Inversion) ___________________________________________________________________________ 19. Robert got a bad cough because he started smoking cigarettes. (Inversion) ___________________________________________________________________________
1. This/ be/ first/ time/ I/ write/ lover. 2. Her father/ work/ engineer/ since 1990. 3. He/ able/ drive/ since/ 18. 4. You/ visit/ Buckingham Palace/ yet? 5. It/ most enjoyable/ concert/ they/ ever/ be. 6. I/ never/ taste/ such/ delicious cake. 7. It/ the first time/ I/ ride/ camel. 8. Since/ his wife/ die/ 1978/ Charles/ live/ alone. 9. They/ send/ text messages/ friends/ yet? 10. This/ best/ party/ I/ ever/ be to.
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