nhận biết Ba(OH)2, BaCl2, H2SO4, NaOH bằng 1 kim loại

Write a topic sentence about: 1. Music 2. Tennis 3. Learning English 4. Traveling by plane 5. Reading (Chỉ viết câu chủ đề thôi nha) Thanks ^^

Gì chứ dạo này toàn thấy trend vẽ người que không. Thôi thì em cũng đú :))) Vẽ người que phiên bản đặc biệt đại hạ giá có một không hai!. “Câu hỏi này chỉ dành cho các mod có số xác thực dưới 10, mong các bạn chấp hành đúng yêu cầu và nội quy đề ra. Xin chân thành cảm ơn!”.

Tìm nghiệm nguyên của phương trình: `23x + 53y = 109` nhanh nha mk vote 5*

Giúp mình với nha, mình đang cần gấp

400g dd NaCl 38,9% bão hòa (50 độ). Hạ xuống 25 độ thì có bn kg muối kết tinh . S NaCl 25 ddoooj = 12,5 gam

1.I arrived on time in spite of the bad traffic. Although…………………………………………………………………………………………………… 2. David has good relationship with most of his colleagues. David gets…………………………………………………………………………………………………. 3. Lan was ill, so she didn't go to Dong Ho village with her friends. Because…………………………………………………………………………………………………….. 4. The children are eager to visit Hue next week. The children are looking…………………………………………………………………………………… 5. I'll give you a call immediately I have finished my work. As soon…………………………………………………………………………………………………….. 6. My brother likes action films. He likes romantic comedies, (and) ……………………………………………………………………………………………………………… 7. Vinh usually stays up late to watch soccer matches. He knows it isn't good for his health, (although) ……………………………………………………………………………………………………………… 8. I'm not interested in operas. They are often long and boring, (because) ……………………………………………………………………………………………………………… 9. Lan went to bed before the game show ended. She was tired and sleepy, (so) ……………………………………………………………………………………………………………… 10. David loves wild animals. He never watches nature programs, (but)

although as soon as because before so that while 1. The children are very excited_____________they're going to visit a craft village this weekend. 2. We will tell Alice about the trip_____________we meet her. 3. _____________it rained a lot, they enjoyed their holiday. 4. I bought a new pair of glasses_____________I can see better. 5. _____________I go out tonight, I will have to finish this essay. 6. Phong burnt his hand_____________he was cooking dinner. 7. Laura always gets up early every morning _____________she's not late for her work. 8. Mr. Harrison seems to have a lot of money_____________he lives in a luxurious house. 9. _____________I was waiting for the bus, I saw some foreign tourists. 10. They didn't win the game _____________they played very well.

mai mình nộp rồi mn giúp mình với

Cho ( E): x²/9+x²/4=1 và (E'): (x'-3)²/9+(y'+5)²/4=1 Vẽ ( e) (e') Tìm phép tịnh tiến vecto u để E' = Tu(e) Ai đó giúp em vs m.n !!