Cho các chất sau: dd H2SO4 lãng, dd KOH,SO2,CO! Fe3O4. viết các pt xảy ra giữa chúng với nhau từng đôi một nếu có với các đ kiện có đủ

giải thích chi tiết có ngay hay nhất nhé

tác giả bài Cổng trường mở ra là của ai và thuộc thể loại j nhanh lên mng ơi ;-;

17. ‘‘Why don’t we go to the movies this weekend?’’ - ‘‘________________ ’’ A. Good idea. B. You’re welcome. C. No problem. D. Not at all. 18. To________________ money, people learn to reuse some daily products like coca cola bottles. A. help B. make C. produce D. save 19. A friend of ________________ is coming to stay with us next month. A. me B. our C. we D. ours 20. Which of the following is NOT non-renewable source of energy? - ________________ . A. Oil B. Wind C. Natural gas D. Coal 21. ____ is not very far from here to the harbour. A. There B. This C. It D. That 22. Linh used to _____ Jigsaw puzzles in his spare time. A. do B. does C. doing D. did 23. Traffic accidents can be prevented if people _____ the rules. A. remember B. obey C. go after D. take care of 24. I’m sure you’ll find the film _______. A. amuse B. amusing C. amused D. amusingly 25. Everybody attends the festival ______ fun. A. with B. for C. in D. of 26. She never reads comic book in her free time, ______? A. doesn’t she B. didn’t she C. does she D. did she 27. At 7.00 tomorrow you _____ to school. A. cycle B. will cycle C. will be cycling D. will be cycled 29. We went out _____ it was raining. A. although B. becouse C. in spite of D. despite 30. Her daughter has studied English for two years, ______? A. have she B. has she C. hasn’t she D. haven’t she

1.Khi đi hoặc đứng, hãy để ý tìm hiểu xem có lúc nào cả cơ gấp và cơ duỗi cẳng chân cùng cơ? Giải thích hiện tượng đó 2.Trẻ em lớn lên khi ngủ đúng hay sai? Vì seo? *Ko chép mạng

Mn giúp mk vs , mk cần gấp lắm, mk sẽ vote 5* và ctlhn

Would you like to go ...........? / like / because / fast. / I / kangaroos / are / they / My brother is a factory .......... What time is it? - It's seven ........... Would you like to go ........ a walk? Làm biếng ghê ;-;;;;;;

PART A. LANGUAGE FOCUS I. Choose the best option to complete each sentence. Circle A, B, C or D. 1. The movie on TV last night made me ……………. A. bore B. bored C. boring D. boredom 2. If people ………. the rules, there are no more accidents. A. follow B. take care of C. obey D. remember 3. Does your bike ever…….. down on the way to school? A. break B. take C. do D. turn 4. ………. he spent much money on the film, it wasn’t a big success. A. Even B. But C. Although D. Despite 5. A lot of dancers go to Rio de Janeiro to………..the Rio carnival. A. join B. perform C. attend D. appear 6. Please tell him to………… the light. It is getting dark. A. turn up B. turn over C. turn off D. turn on 7. Nuclear power ……… in the future. A. will replace B. replaced C. will be replaced D. replaces 8. Last year, Phuc participated in …….. funs for street children. A. raising B. making C. gathering D. taking 9. I’m tired of…….. nothing to do at home. A. to have B. have C. having D. had 10. La Tomatina is a seasonal………..to celebrate the tomato harvest. A. festival B. game C. parade D. celebration 11. ________________ silly mistake! A. What B. What a C. How D. How a 12. I ________________ go on foot when I was in primary school. A. have to B. may C. can D. used to 13. The end of the play was so ________________ . A. moved B. move C. moving D. moveable 14. ________________ the boring film, he saw it from beginning to end. A. Despite B. However C. In spite D. Although 15. Bus is the main public ________________ in Vietnam. A. travel B. tricycle C. transport D. vehicle 16. ________________ is not very far from here to the harbor. A. There B. It C. This D. That

cho pt x^2-2(m-1)x+m^2-3m+4=0 a,tìm m để pt có hai nghiệm x1,x2 phân biệt và nghiệm này gấp đôi nghiệm kia đáp án í a bằng m=4,m=7 b,xác định m để x1^2+x2^2=20 b mình tính ra là m=4 c,xác định m để biểu thức x1^2+x2^2 đạt GTNN tính cho tớ í c ra cảm ơn

Vẽ đậu mầm vui :) ( màu + line + tradi )