cho 13g kẽm ( zn ) tác dụng hoàn toàn vs axit clohidric (hcl ) tạo thành muối kẽm clorua( zncl3 ) giải phóng khí hidro (h2 ) a) viết pthh b) tính khối lượng hcl tam gia pư vs khối lượng khí h2 tạo thành ? c) nếu có 3mol kẽm tham gia PƯ vs 7 mol HCL thì khối lượng Zncl2 , sinh ra bao nhiêu gam ?
lập bảng thống kê các tên gọi và đơn vị hành chính của nước ta trong các thế kỉ 1-6
Bài 3. Dự đoán giá trị của x thỏa mãn đẳng thức dưới đây và kiểm tra lại. 1) (-7).x=77 2) ; 8.x=-80 3);(-5).x=(-6).(-10) 4) 9.x=(-12).(-60)
31. ________ she's young, she's the most famous artisan in the village. A. When B. Although C. Whereas D. In order to 32. Do you know who's¬¬¬¬¬¬________ his pottery workshop? A bringing out B taking over C. passing down D. turning down 33. I've ________ the product catalogue and decided to buy this table. A found out B. closed down C. looked through D. lived on 34. This sports centre is so small that it cannot ________the demands of local residents. A keep up with B. face up to C. deal about D set up 35.Nam went to Hue city________ he could take some beautiful photos. A. when B. although C. while D. so that 36. The city has recently set _____ a library in the West Suburb. A. up B. off C. out D. down 37. The last exhibition was not ______ this one. A. as interesting B. more interesting than C. so interesting as D. interesting 38. I don’t think Fred gets _____ with Daniel. They always argue. A. over B. through C. on D. in 39. This city is developing ______ in the region. A. as fast as B. faster than C. the fastest D. faster 40. You should take your hat _____ in the cinema. A. in B. over C. off D. down 41. You’re not a safe driver! You should drive ______. A. careful B. careless C. more carefully D. carefully 42. Their children have all grown _____ and left home for the city to work. A. up B. out C. out of D. in 43. I was disappointed as the film was ______ than I had expected. A. as entertaining B. less entertaining C. more entertaining D. entertaining 44. We were shown _____ the town by a volunteer student. A. up B. off C. around D. on 45. Let’s take this road. It is ______ way to the city. A. the shortest B. a shorter C. shortest D. A and B are correct 46. The town council decided to pull _____ the building, as it was unsafe. A. up B. over C. down D. in 47. At weekends the city centre is always packed with people. A. busy B. crowded C. full D. quite 48. She lives in one of the most ______ parts of the city: there are lots of luxury shops there. A. fashionable B. historic C. comfortable D. exciting 49. China is _____ far the most populated country in the world. A. as B. by C. so D. to 50. Air pollution has a bad influence _____ the environment. A. at B. in C. on D. to 51. Karachi in Pakistan is the _____ largest city in the world in population. A. most B. two C. second D. three 52. Before ______ to the office, she has to take her children to school. A. go B. going C. to go D. went 53. Hai Duong is famous _____ its green bean cakes. A. for B. of C. with D. in 54.When I turned up, the town hall was already ______ teenagers. A. full B. packed C. crowded D. jammed 55. We’ve spent a lot of time _____ around the town. A. wander B. wandering C. to wander D. wandered 56. She has taught English here ________ 10 years. A. in B. for C. since D. from 57. The flower was _______ out of a single piece of valuable wood. A. carved B. moulded C. cast D. given 58.I love going to this place _____________ it’s the quietest place in the city. A. so B. though C. so that D. as 59.They keep changing the decoration of the shop _______they can attract more young people. A. so that B. because C. although D. when 60._____________ she’s young, she’s the most famous artisan in the village. A. When B. Although C. Whereas D. In order to
x^2+3x-4=0 giúp em giải với hứa vote 5s
mấy bạn giúp mình vs mình cần gấp lắm
Giải hộ em với em đang cần gập ko xog vào hôm nay thì em tui
Giúp mik lm với ạ Hứa vote 5sao ạ Hứa cảm ơn!
Khi tha mot qua cam vao mot binh tran chua day nuoc thi nuoc tran vao mot binh chia do co ghd300cm3 va dcnn5cm3 muc nuoc trong binh chia do len toi vach so 215 the tich cua qua cam la bao nhieu
I. Đọc hiểu: NGẮM TRĂNG Hồ Chí Minh Trong tù không rượu cũng không hoa, Cảnh đẹp đêm nay khó hững hờ; Người ngắm trăng soi ngoài cửa sổ, Trăng nhòm khe ca ngắm nhà thơ. (Nam Trân dịch) Câu 1: Bác Hồ ngắm trăng trong hoàn cảnh như thế nào? Câu 2: Em hãy chỉ ra những hình ảnh đẹp của bài thơ. II. Tạo lập văn bản Qua bài thơ em thấy hình ảnh Bác Hồ hiện ra như thế nào? (Viết thành đoạn văn khoảng 5-10 dòng) mai mình nộp rồi giúp mình với
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến