hòa tan hoàn toàn 3,9 gam kali vào 36,2 gam nước thu được V lít khí H2 (đktc) và dung dịch A a)Tính V; b)Tính nồng độ phần trăm của dung dịch A (cho NTK: O=16; H=1;K=39;Hg=201)

1. Put the verbs given in the correct tense and voice (active or passive) (1.0 point) Yesterday afternoon, Tom had a letter from his sister, who lives in Canberra. He (1. not see) _____ her since she moved to Australia. Through her letter, Tom (2. know) _____ that she is coming to England next year. If she comes here, she (3. get) _____ a surprise. Tom and his family are now living in a beautiful new house in the country. The house (4. complete) _____ five months ago. Tom wants her to stay with his family. II. Word Formation (0,5 point) 1.As a country situated in Asia, in which many mysteries and legends originate, Vietnam has kept various_______beliefs about daily activities.(SUPERSTITION) 2. Pike claimed they had ____ against him because of his nationality. (DISCRIMINATION) III. Rewrite the sentences with suggested words (1.5points). 1. Most of the students can answer this question. This question ________________________________ 2. “Where were you last night, Mr. Jones ?” she said She asked ____________________________________ 3. If she doesn’t water these trees, they will die. Unless ________________________________________. 4. The man is a famous actor. You met him at the party last night. The man _____________________________________________ 5. There is no better teacher in this school than Mrs. Jackson. Mrs. Jackson is __________________________________________

đặt 2 câu có sử dụng phép hoán dụ

Tìm và sủa lỗi sai cho câu sau: What will you do so far?

Hoa phải đi một quãng đường từ A đến B. Nếu Hoa đi bằng xe đạp thì mất 6 giờ, còn nếu Hoa đi bằng xe máy thì hết 3 giờ. Biết vận tốc xe máy lớn hơn vận tốc xe đạp là 15 km/h. Tính vận tốc mỗi xe.

đặt 1 câu có sử dụng phép so sánh và 1 câu nhân hóa

Giải giùm với tui quên hết công thức ròi

Đốt cháy 12,4 gam photpho vào oxi sinh ra điphotpho pentaoxit. Hãy tính : a, khối lượng sản phẩm tạo thành b, thể tích oxi đã phản ứng ở điều kiện tiêu chuẩn

Làm đúng giùm Ai giúp vs Cần gấp ạ!!!

For many people, commuting by car or ( 1)_____ public transporttation is a daily necessity. People with their own cars, use it to commute to work, to go shopping (2)_____ to take the family out on weakends. For those who ( 3)_____ no own vehicles, they use public transports such as bus, train. However, perhaps both public transport and private one may not (4)_____ any more if our politicians don' t build better roads or resolve the on - going oil crisis 1: A. by. B.on C.at D. of 2: A. and B.so C. or D. because 3: A. is B. have C. are D. has 4: A. be used B. use C. used. D. uses