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Sục 6,72 lit SO2 vào 300ml dd KOH 1,5M. Tính khối lượng muối thu được ?
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giúp mình nhé mọi người,cảm ơn ạ!! I. Find the word which has different sound in the part underlined. (0.5 point) 1. A. wanted B. naked C. danced D. needed 2. A. who B. when C. where D. what 3. A. skill B. split C. children D. finance II. Find the word which has different stress pattern from the others. (0.5 point) 4. A. artistic B. historic C. dramatic D. scientific 5. A. media B. hospital C. politic D. electric 6. A. resort B. expedition C. environment D. affordable III. Choose the best answer to complete each sentence. 7. If I ________you, I would see the doctor right away. A. be B. am C. were D. have been 8. If the factory _______ dumping poison into the lake, all the fish and other aquatic animals will die. A. continues B. to continue C. continued D. will continue 9. Scotland is an interesting place to visit with its rich _______ A. culture B. cultural C. natural D. naturally 10. If the air wasn’t dirty, I ________________ so much. A. wouldn’t sneeze B. sneeze C. would sneeze D. to sneeze 11. If the factory continues dumping poison into the lake, all the fish and other aquatic animals ________________. A. die B. to died C. dead D. will die 12. Water pollution is the ________________ in the lake has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 13. The Statue of Liberty in New York is a monument which __________ freedom. A. symbolize B. symbolizes C. symbol D. symbols 14. Before the storm hit the village, people _______________. A. evacuate B. evacuates C. had evacuated D.are evacuating 15. Factories _______waste into rivers if the government fines them heavily A. do not dump B. did not dump C. is not dumped D. won’t dump 16. The kangaroo _____________ a symbol of Australia since 1973. A. becomes B. has become C. has been become D. became 17.The earthquake occurred____________ midday when they were having lunch. A. at B. in C. on D. of 18 .We ______any natural disasters before we were trapped in an avalanche last month. A. haven’t experienced B. didn’t experience C. won’t experience D. hadn't experienced 19. What_________ by the time the mudslide occurred? A. had the government done B. has the government done C. did the government do D. is the government done 20. After our plane ……. , we waited for an hour for our luggage. A. had been landed B. has landed C. had landed D. was landing

I. Find the word which has different sound in the part underlined. (0.5 point) 1. A. wanted B. naked C. danced D. needed 2. A. who B. when C. where D. what 3. A. skill B. split C. children D. finance II. Find the word which has different stress pattern from the others. (0.5 point) 4. A. artistic B. historic C. dramatic D. scientific 5. A. media B. hospital C. politic D. electric 6. A. resort B. expedition C. environment D. affordable III. Choose the best answer to complete each sentence. 7. If I ________you, I would see the doctor right away. A. be B. am C. were D. have been 8. If the factory _______ dumping poison into the lake, all the fish and other aquatic animals will die. A. continues B. to continue C. continued D. will continue 9. Scotland is an interesting place to visit with its rich _______ A. culture B. cultural C. natural D. naturally 10. If the air wasn’t dirty, I ________________ so much. A. wouldn’t sneeze B. sneeze C. would sneeze D. to sneeze 11. If the factory continues dumping poison into the lake, all the fish and other aquatic animals ________________. A. die B. to died C. dead D. will die 12. Water pollution is the ________________ in the lake has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 13. The Statue of Liberty in New York is a monument which __________ freedom. A. symbolize B. symbolizes C. symbol D. symbols 14. Before the storm hit the village, people _______________. A. evacuate B. evacuates C. had evacuated D.are evacuating 15. Factories _______waste into rivers if the government fines them heavily A. do not dump B. did not dump C. is not dumped D. won’t dump 16. The kangaroo _____________ a symbol of Australia since 1973. A. becomes B. has become C. has been become D. became 17.The earthquake occurred____________ midday when they were having lunch. A. at B. in C. on D. of 18 .We ______any natural disasters before we were trapped in an avalanche last month. A. haven’t experienced B. didn’t experience C. won’t experience D. hadn't experienced 19. What_________ by the time the mudslide occurred? A. had the government done B. has the government done C. did the government do D. is the government done 20. After our plane ……. , we waited for an hour for our luggage. A. had been landed B. has landed C. had landed D. was landing

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