Đáp án:
Giải thích các bước giải:
(1). `2SO2 + O2 -> 2SO3`
(2).`SO3 + H2O -> H2SO4 `
(3) `H2SO4 + 2NaOH -> Na2SO4 + 2H2O`
(4) ` Na2SO4 + BaCl2 -> BaSO4 + 2NaCl`
(5) ` H2SO4 (đđ) + SCl2 -> 2SO2 + 2HCl `
(6) ` SO2 + H2O -> H2SO3`
(7) `H2SO3 + NaOH -> Na2SO3 + H2O`
(8) `Na2SO3 + 2HCl -> 2NaCl + SO2 ↑ + H2O`
Write complete sentences using the words/ phrases given in their correct forms. You can add some more necessary words, but you have to use all the words given. 1. Teenagers/ would like/ be on/ their mobile phones or computer/ playing games/ communicating/ their friends. 2. They/ also want/ spend time/ together/ their parents. 3. They/ spend time/ sitting around the table/ have dinner/ watching TV as a family/ going out with the parents. 4. Teenagers/ tend/ make their own decisions/ although/ they/ not have much experience. 5. Parents/ share experience/ their children/ so that/ they/ not make wrong decisions.
Ai giúp mình làm phần c với rõ ràng chút😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭
Các bạn giúp mình với thuyết trình về cá ngắn gọn đầy đủ ạ mình cảm ơn
Bạn nào giúp mình câu này với!! Mình đang cần gập ạ!!
Giúp mình vs ạ. Cảm ơn nhìu và hứa cho 5 sao ạ. 1. We own 100 acres of farmland while our neighbours own only 50. (Half) ->Our neighbours..............as we do. 2. At least 1000 machinists went on strike in support of the miners. (Came) -> No fewer....... With the miners.
Các nguyên tử khí liên kết với nhau......
phân tích đa thức thành nhân tử (dễ nên làm luôn nha)
Giúppppp mình vớiiiiiiiii ạaaaa
Hoạt động của Quốc tế cộng sản có ảnh hưởng gì đến cách mạng Việt Nam?
26. “Why didn’t you follow my advice?” he said. A. He asked me to follow his advice.B. He asked me not to follow his advice. C. He asked me why I did follow his advice.D. He asked me why I hadn’t followed his advice. 27. “Are you coming to the party tonight, Mary?” said Adam. A. Adam said if Mary was coming to the party that night. B. Adam said if Mary was coming to the party tonight. C. Adam asked Mary if she was coming to the party tonight. D. Adam asked Mary if she was coming to the party that night. 28. “What time is it, Frank?” said Tim. A. Tim asked Frank if it was what time. B. Tim asked Frank if what time it was. C. Tim asked Frank what time it was.D. Tim asked Frank what time was it. 29. Do you know _______ ? A. what wrong was it withB. what wrong was with it C. what’s wrong with itD. what wrong is it with 30. John asked _______. A. how much that bike costB. how much this bike cost C. how much this bike costsD. how much that bike costs
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