giúp mình bài 5 đúng thì mình cho 5 sao nha!

các bạn giải hộ mình từ bài 11 đến bài 15 nhé , mình sẽ vote 5 sao cho bạn naò chả lời đầy đủ nhất

Câu 16. Thực hiện nung a gam KClO3và b gam KMnO4 để thu khí ôxi. Sau khi phản ứng xảy ra hoàn toàn thì thấy khối lượng các chất còn lại sau phản ứng bằngnhau. a. Tính tỷ lệa/b . b. Tính tỷ lệ thể tích khí ôxi tạo thành của hai phản ứng. ae giúp mình vs

Read and circle the best option Everyone (1)……………….…… oranges. They are quite sweet and juicy. They are in sections so (2)……………….…… is very easy to eat them. Some oranges (3)……………….…… not have seeds. Some (4)……………….…… thick skins and some have thin skins. The orange tree is beautiful. It has a lot of (5)……………….……. leaves. The small white flowers smell very sweet. (6)……………….…… orange tree has a lot of flowers and fruit at the same (7)……………….…… . "Orange" is both a fruit (8)……………….…… a colour. The (9)……………….…… of orange is so beautiful that in English we use the name of the fruit (10)……………….…… the colour.

Tính diện tích hình thang có 20% tổng độ dài của hai đáy bằng 1,8 cm; chiều cao bằng 2,5 cm

10. ……… I don't like vegetables, I eat them every day. A. But B. Although C. So D. Because 11. VTV is a __________ TV channel in Vietnam. It attracts millions of TV viewers in Vietnam. A. national B. international C. local D. wide 12. What’s your __________ TV programme? A. best B. good C. favourite D. like 13. My family enjoys watching game shows _____ they are very exciting and interesting. A. so B. because C. but D. and 14. __________ do you like the modern English programme? - Because it helps me with my English. A. What B. Where C. Who D. Why 15. Disney channel is one of the most __________ channels __________ children. A. good – for B. exciting – of C. popular – to D. popular – for 16. - __________is that TV programme directed by? - By a famous Vietnamese director. A. What B. When C. Where D. Who 17. The football match is on at 2 am, __________ I can’t watch it. A. so B. because C. but D. then 18. My brother wants to become a ________ to tell TV viewers what the weather is like. A. newsreader B. actor C. weatherman D. producer 19. My sister often __________ badminton in her free time. A. play B. plays C. playing D. to play 20. __________ are films by pictures, not real people and often for children. A. Documentary B. Cartoons C. Love stories D. Detective story 21. Are there any good programmes __________ teenagers on TV tonight? A. to B. of C. with D. for 22. My father works late tomorrow, so he will _____ the first part of the film on VTV1. A. miss B. lose C. forget D. cut 23. That TV programme is not only interesting __________ it also teaches children many things about family and friendship. A. and B. so C. because D. but 24. - __________ is the weather forecast programme on? - At 7.30 pm every day. A. what B. how C. when D. where 25. If you want to know what the __________ is like tomorrow, watch the weather forecast. A. weather B. music C. world news D. game show 26. In the cinema we eat or drink anything. A. must B. should C. shouldn't D. can 27. They _________the bus yesterday. A. don’t catch B. weren’t catch C. didn’t catch D. not catch 28. _________ is one of the most ancient of all sports. A. Horse racing B. Racing horse C. Race horse D. Horse race 29. People usually do ______ with the music. A. karate B. volleyball C. Judo D. aerobics 30. My mother_______ table tennis very well when she ______ five years old. A. plays/was B. played/was C. is playing/was D. played/ were 31. My father _________tired when I _________ home. A. was – got B. is – get C. was – getted D. were – got 32. What _________you _________two days ago? A. do – do B. did – do C. do – did D. did – did 33. Team sports ore sometimes called … sports. A. compete B. competition C. competitor D. competitive 34. We _________David in town a few days ago. A. did see B. was saw C. saw D. did saw 35. We should use _____ to protect your eyes when you go swimming. A. clothes B. hat C. sunglasses D. goggles 36. My team won the trophy yesterday! - _______________________________ A. I don't care anything. B. I didn't know what happened. C. Well... you're so talented. D. Congratulations! 37. Jane! I have two tickets to see the baseball match for both of us this week. - _______________________________ A. See you later. We'll meet at the stadium. B. Great! We'll have a lot of fun there. C. Not at all. I can't go with you. D. Really? I can't believe it.

Budapest Budapest has a population of over two million people . The river Danube divides the city into two parts. On the west bank there are woods and hills of Buda and the old town. On the east side there are bigger and more modern Pest . You can choose the peace and quiet Buda’s woods or the excitement of Pest , where there are good theatres, restaurants, bars and shops. The public transport system in Budapest is one of the best and cheapest in the world . You can travel easily by underground, bus, train and taxi but driving a car here is not a good idea. There are not many car parks . Most cars are old, so the air in this city is polluted. 1. How many parts does the Danube divide Budapest into ? ................................................................................................. 2. Where will you stay if you choose the excitement ? .............................................................................................. 3. What is the public transport system in Budapest like ? .............................................................................................. 4. What does the word here refer to ? ..............................................................................................

17/3 : (-4/15) - 19/3 : (-4/15)

18.Có các bình khí riêng biệt,không nhãn,chứa một trong các khí sau:C2H4,CH4,CO2,SO2.có thể dùng các thuốc thử nào sau đây để phân biệt các bình khí trên A.QUỲ tím,dd brom B.dd brom,nước vôi trong C.dd NaOH,quỳ tím D.dd NaOH,phenolphtalein 19.trong các công thức cấu tạo sau thì những CTCT nào viết sai a)CH3-CH3-CH2-CH3 b)CH3-CH2-CH2-CH3 c)CH2-CH2-CH3 d)CH3-CH2-CH3 A.b và d B.b và a C.c vàd D.a và c 20.Chất có phần trăm khối lượng cacbon lớn nhất là A.CH4 B.CH3CL C.CH2CL2 D.CHCL3 21.Hỗn hợp khí X gồm CO2,H2H4,CH4.Dần hỗn hợp X lần lượt qua bình 1 chứa nước vôi trong dư,sau đó qua bình 2 chứa dd brom dư,cuối cùng qua bình 3 chứa H2SO4 đặc,thu đc khí Y.Khí Y là A.H2S B.C2H2 C.C2H4 D.CH4 GIÚP MÌNH VS,cho mình tks trước

12 người may xong một lô hàng hết 5 ngày. Muốn may hết lô hàng đó trong một ngày thì cần thêm mấy người?( với năng suất máy như nhau)