Xác định cặp chất sau có tồn tại trong dung dịch ko?Giải thích? 1.Na2SO3,HCL 2.K2CO3,H2SO4 3.NaNO3,HCL 4.NaCL,AgNO3 5.BaCL2,K2SO4 6.FeCL2,KOH 7.NaOH,ALCL3 8.K2SO4,NAOH 9.Na2CO3,Ba(OH)2 10.HNO3,Cu(OH)2 1

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Ex2: Hãy chuyển các câu sau sang câu điều kiện loại I. 9. I have free time. I go for a walk with you. ->....................................................................... 10. You keep making noise. I punish you. ->.................................................................... 11. You drive fast. You have an accident. ->................................................................... 12. He doesn't stop smoking, he dies of lung cancer. ->....................................................................................... 13. He stays at home, I give her a bar of chocolate. ->.................................................................................... 14. Your English is good. They accept you. ->..................................................................... 15. They don't open the door. The room is very dark. ->........................................................................................ 16. You don't spend too much on shopping. You save a lot of money. ->.................................................................................................................... 17. We pollute the river. We don't have water to use. ->........................................................................................ 18. I show you how to write a book. You try to study. ->....................................................................................... 19. She doesn't hurry. She is late for school. ->........................................................................ 20. You don't take the medicine. Your health is worse. ->.......................................................................................... 21. You do this exercise well. I give you ten good marks. ->............................................................................................. 22. She travels by plane. She is on time for the meeting. ->............................................................................................. 23. He speaks fast. They don't understand him. ->............................................................................... 24. You hang the picture on the wall. The room looks more beautiful. ->..................................................................................................................... 25. You stay up late. You are tired tomorrow. ->.......................................................................... Giúp tui vứi