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huyen_nguyen_2001
2 năm trước
cho 9.55 gam hỗn hợp ba kim loại Al, Mg, Zn tác dụng vừa đủ với dung dịch chứa 25.55 gam HCl. Cô cạn dung dịch sau phản ứng, thu được a gam muối khan. Giá trị của a là?
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Các câu hỏi liên quan

1. The teacher as well as his students ………………… reading books. (like) 2. The boys …………………… the play for the school anniversary celebration. (rehearse) 3. I’ll come and see you before I ……………… for Ho Chi Minh city. (leave) 4. It’s time you …………………… for the party tonight. (prepare) 5. He used to ………………… to school by his mother when he was young. (take) 6. He started …………………. the guitar when he was five. (play) 7. I’d rather you ………………….. that mess again. (make) 8. Mary hates ………………………… by her friends. (recognize) 9. This shirt is too tight for him ………………….. (wear) 10. This knife is only used ……………………. the fruit. (cut) 11. Stop playing ! You …………………… for 4 hours. (run) 12. Kieu’s story …………………… by Nguyen Du a long time ago. (write) 13. The audience was made …………………… by the funny clown. (laugh) 14. Not until 1995 ………………………………… on Tien River. (a bridge/build) 15. After the recess, our teacher went on ……………………… the lesson. (explain) 16. Do you have any difficulty ……………………. English ? (study) 17. If Ben …………… up early, he can catch a bus. (get) 18. When I am living in Paris for my new job, I ………………………. you. (visit) 19. George is going to buy a new computer unless it ………………… too expensive. (be) 20. Our teacher said that she ……………………… us the following day. (examine) 21. He wishes he ……………………… able to speak French well. (be) 22. These children …………………………… tennis for four hours now. (play) 23. Your Russian is very good. How long ………………………. it ? (you / learn) 24. Come on. It’s time you ……………………… the new job. (finish) 25. Now musical instruments …………………………… already. (buy) 26. Town criers shouted the latest news as they …………………… through the city. (walk) 27. I would rather you ……………………… your written test well. (do) 28. One of the boys wanted to know what ………………… to that man the previous day. (happen) 29. Though being unsuccessful, they ……………………… a good match. (play) 30. He wishes he ………………… wings to fly around the world. (have) 31. Would you like …………………… that famous scientist ? (meet) 32. He doesn’t like being ……………………… like that. (treat) 33. The large number of people attending the course …………………… every day. (increase) 34. That boy is looking forward ……………………… ……………………… (go / picnic) 35. Uncle Ho devoted his life ……………………… the way to rescue Vietnam. (find)

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