Nung nóng 36,7 gam muối của kim loại X thu được m g oxit bazo của kim loại X (X chiếm 80% về khối lượng) và 6,72l hỗn hợp khí gồm NO2 và O2 có khối lượng mol trung bình là 43,2 g/mol Tìm khối lượng mol của X (Có j nhớ làm tròn hộ mik nha, X không xác định cũng được ạ)

châu giao do nhà hán thuyết lập gồm những vùng đất nào

hãy viết một đoạn văn miêu tả ngắn với nội dung tự chọn , trong đó có dùng phép nhân hoá

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. 46. Question 46. At no time did the two sides look likely to reach an agreement. A. The two sides had no time to reach an agreement. B. The two sides never looked likely to reach an agreement. C. If the two sides had had more time, they would have reached an agreement D. The two sides would never like to reach an agreement. 47. Question 47. The movie bears little resemblance to the original novel. A. The movie is very similar to the original novel. B. The movie is quite different from the original novel. C. The movie and the original novel resemble in many ways. D. The movie and the original novel differ in some ways. 48. Question 48. The waiter said: “Would you mind moving to another table?” A. The waiter asked me to move to another table. B. The waiter advised me to move to another table. C. The waiter insisted me to move to another table. D. The waiter told me not to move to another table Câu 49 - 50 Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 49. Question 49. Domestic cats enjoy playing and sitting in the sun. Cats in the wild like doing so. A. Domestic cats enjoy playing and sitting in the sun the sun and so cats in the wild do. B. Domestic cats enjoy playing and sitting in the sun and so do cats in the wild. C. Domestic cats enjoy playing and sitting in the sun and cats in the wild do so too. D. Domestic cats enjoy playing and sitting in the sun and so cats do in the wild. 50. Question 50. I owed Bill a favor. I agreed to help him. A. I only agreed to help Bill because I owed him some money. B. If I hadn’t owed Bill a favor, I would have agreed to help him. C. It was only because I owed Bill a favor that I agreed to help him. D. Although I owed Bill a favor, I agreed to help him.

M.n giải giúp mình phần đọc hiểu với ạ

Hãy nêu các tính chất của phép cộng số tự nhiên.

Tính một cách hợp lí: a) $\dfrac{-5}9+\dfrac4{11}+\dfrac7{11}$ b) $\dfrac{-2}{5}+\dfrac38+\dfrac{-3}5+\dfrac{13}8$

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions. 19. Question 19. To absorb a younger workforce, many companies offered retirement plans as incentives for older workers to retire and make way for the young ones who earned lower salary. A. rewards B. opportunities C. motives D. encouragements 20. Question 20. How on earth could they do away with a lovely old building like that and put a car park there instead? A. keep B. destroy C. decrease D. upgrade Câu 21 - 22 Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 21. Question 21. The first year at university was probably the most challenging year of her life, which caused her plenty of troubles. A. tricky B. tough C. difficult D. easy 22. Question 22. I don’t know what they are going to ask in the job interview. I’ll just play it by ear. A. plan well in advance B. be careful about it C. listen to others saying D. do not plan beforehand Câu 23 - 24 Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. 23. Question 23. Tom is apologizing to Peter for being late. - Tom: “Sorry, I’m late, Peter. My car has broken down on the way here.” - Peter: “___________________” A. No, I wouldn’t mind at all. B. Not on my account. C. That’s all right. D. Well, it’s worth a try. 24. Question 24. Two friends, Peter and Linda, are talking about pets. - Peter: “Well, cats are very good at catching mice around the house” - Linda: “___________________” A. Nothing more to say. B. You can say that again. C. Yes, I hope so. D. No, dogs are good, too.

Tính: a) $\dfrac{-3}7+\dfrac27$ b) $\dfrac{-4}7+\dfrac2{-3}$

phân tích đặc điểm khí hậu biển đông. Đặc điểmnày thuận lợi đến sinh hoạt và sản xuất của người dân ven biển như thế nào