Cho 3.6g hỗn hợp CuS và FeS tác dụng với dung dịch HCl dư thu được 896ml khí (đktc) .Khối lượng muối khan thu được là (g)

II. Choose the correct tag question. 1. You're coming to the party, _________ ? A. aren't you B. isn't you C. shouldn't you D. are you 2. It wasn't very difficult, _________ ? A. wasn't it B. isn't it C. was it D. is it 3. Tom is getting something for Sue, _________ ? A. wasn't he B. isn't he C. was he D. is he 21. Nga and Maryam are pen pals, they? A.don’t B. are C.aren’t 22. You can’t speak Chinese, you? A.aren’t B. are C.can’t 23. You like jeans, you? A. are B. do C. don’t D. aren’t 24. Hoa has lived in Ha Noi for 3 years, she? A. doesn’t B. isn’t 4. It won't be anything expensive, ______ ? A. won't it B. isn't it C. will it D. was it 5. There's some milk in the refrigerator, ______ ? A. isn't there B. wasn't it C. isn't it D. was it 6. We don't need to go to the store today, ___ ? A. don't we B. do I C. didn’t we D. do we 7. Susan can bring some food, _________ ? A. won't she B. will she C. can't she D. doesn’t he 8. The party starts at eight o'clock, _________ ? A. isn't it B. doesn't it C. does it D. is it 9. The movie was very long, _________ ? A. isn't it B. wasn't it C. was it D. are they 10. There's a dictionary on the shelf, _________ ? A. isn't it B. isn't there C. aren't there D. is there 11. There's a lot of noise outside, _________ ? A. aren't there B. isn't there C. is there D. was there 12. Mrs. Smith is sick, _________ ? A. isn't she B. is she C. wasn't she D. were she 13. The dishes are dirty, _________ ? A. weren't they B. isn't they C. aren't they D. were they 14. Steven won't be at the party, _________ ? A. won't he B. isn't he C. will he D. is he 15. The math test was very difficult, _________ ? A. wasn't it B. isn't it C. weren't they D. were they 16. We can go tomorrow, _________ ? A. won't we B. can we C. can't we D. will we 17. I'm early, _________ ? A. isn't I B. aren't I C. are I D. am I 18. This shirt is too big for me, _________ ? A. isn't it B. doesn't it C. does it D. was it 19. Emily plays the piano well, _________ ? A. isn't it B. does she C. doesn't she D. did she 20. Your neighbors went on vacation, _________ ? A. isn't they B. didn't they C. aren't they D. don’t they C. has D. hasn’t 25. Nam passed his exam, he? A. didn’t B. did C. doesn’t D. wasn’t 26. Jane loves the food and the beaches in Viet Nam, she? A. isn’t B. doesn’t C. does D. can’t 27. Paul will come to Viet Nam next summer, he? A. does B. isn’t C. will D. won’t 28. Mary was ill yesterday, she? A. is B. did C. wasn’t D. was 29. Nam didn’t go to the English Speaking club, he? A. was B. does C. didn’t D. did 30. The progam is interesting, it? A. isn’t B. is C.does D. doesn’t 31. Let’s go somewhere for a cold drink, ? A. do you B. shall we C.don’t we D. shall you 32. Open the door, ? A. do you B. don’t you C.will you D. will we 33. You used to live in Hue, you? A. did B. weren’t C.used to D. didn’t 34. I am not late, I? A. aren’t B. am C. do D. don’t 35. You have to finish your homework before playing games, ________? A. do you? B. have to you? C. don’t you? D. haven’t you? 36. You don’t like love films, you? A. are B. do C. don’t D. did 37. He enjoyed his time here, he? A. didn’t B. do C. don’t D. aren’t 38. Na does not know the neighborhood very well, she ? A. does B. doesn’t C. do D. is 39. She is practicing music lesson in her room, she? A. is B. doesn’t C. don’t D. isn’t 40. The natural resources will be short in a few decades, ______ they? A. will B. aren’t C. won’t D. aren’t

Từ luận điểm '' Nguyễn Trãi là một anh hùng dân tộc '' '' Bình Ngô Đại cáo là bản thiên cổ hùng văn bất hủ của dân tộc '' Viết đoạn văn trình bày theo cách quy nạp,song hành,diễn dịch hai luận điểm trên

Từ tình cảm của tác giả gửi gắm vào đoạn thơ Ta làm con chim hót Ta là một cành hoa Ta nhập vào hoà ca một nốt trầm xao xuyến Đã khơi gợi nơi người đọc về một khát vọng được sống có ích , góp phần làm đẹp cho đời. Em hãy viết đoạn văn nghị luận ngắn khoảng 100 từ nếu suy nghĩ của em về lẽ sống của tuổi trẻ Việt Nam ngày nay đối với đất nước. a) Lập dàn bài b) viết bài

Bài 2 (2,0 điễm). Giải bài toán bằng cách lập hệ phương trình: Một ca nô chạy trên sông xuôi dòng 84 km và ngược dòng 44 km mất tất cả 5 giờ. Nếu ca nỗ xuôi dòng 112 km và ngược đòng 110 km thì mất tắt cả 9 giờ. Tỉnh vận tốc riêng của ca nô và vận tốc dòng nước.

đường kính của bánh xe đạp là 70cm a) bánh xe quay được bao nhiêu vòng thì xe đi được 8km ? b) xe đi được bao nhiêu km nếu bánh xe quay 1000 vòng ?

Giúp mik vs khó quá Đề bài của bài 2 nè Cho dạng đúng của động từ trong ngoặc ở thì tương lai đơn Nha

2 + 2 mũ 2 + 2 mũ 3 + .... + 2 mũ 100 chứng tỏ s+5 chia hết cho7

Vẽ sơ đồ phát triển của cách mạng tư sản Pháp ?

Sentence Transformation 3. Michael laughed when I told him the jokes - The jokes which 4. The first man to walk on the moon was Neil Armstrong - The first man who 5. These shoes are too small for me to get my feet in - These shoes are so 6. The tea was not cool enough for her to drink - The tea was too 7. The police allowed people to enter the exhibition - The police let 8. Mary felt depressed, but she went to her friend's birthday party - Although 9. Henry found his wallet with nothing inside - Henry's wallet 10. Be patient, and you will succeed in life - If 11. Next Saturday, on May 25th, my family will celebrate my grandfather's 80th birthday - My grandfather's 12. We will invite many friends to join the picnic. The friends are our classmates - We will 13. We feel sorry that he can't join the dinner at my house tonight (Wish) - 14. Please come on our house at about 5:00 PM and you can meet all of our old friends - If 15. It's too late for the bedtime, but her son hasn't arrived home yet - Though