Ai giúp mình giải mấy bài này với ạ
câu 1: đốt cháy hết 6,2g photpho. hãy tính a) khối lượng diphotpho pentaoxit -P2O5thu được b) khối lượng khí oxi đã dùng bằng 2 cách Câu 2: đốt cháy hoàn toàn 5,94 gam bột nhôm (Al) cần dùng V lít khí O2 (dktc), tạo ra m gam nhôm oxit (Al2O3) a) tính V lít khí O2 tham gia phản ứng b) tính m gam Al2O3 tạo ra ( bằng 2 cách Câu 3: khi đốt dây sắt, sắt phản ứng với oxi theo phương trình 3Fe + 2O2 → Fe3O4 tính thể tích khí O2 (đktc) cần dùng để phản ứng hoàn toàn với 16,8 gam Fe
Giải hộ mình với ạ, đây là đề cương thi giữa học kì 2 toán. Giải ít nhất 2 bài thì được 5 sao ạ.
Câu 1. Jack is going to London to study next week. - Betty: “____________” - Jack: “Thanks. I will write to you when I come to London.” A. Better luck next time! B. Have a go! C. God bless you! D. Have a nice trip! Câu 2. After finishing the duty at the company at 6 p.m. - Anna: “Shall we eat out tonight?” - Jane: “___________” A. It is very kind of you to invite me. B. You are very welcome. C. That’s a great idea. D. That’s understandable. Câu 3: - Lisa: “Have you been able to reach Peter?” - Gina: “……………” A. That’s no approval B. Yes, I’ve known him for years C. No, the line is busy D. It’s much too high Câu 4: - “Would you bother if I had a look at your paper?” - “……………” A. You’re welcome B. Well, actually I’d rather you didn’t C. That’s a good idea D. Oh, I didn’t realize that Câu 5: Thang was asking Huong, his classmate, for her opinion about the novel he had lent her. Select the most suitable response to fill in the blank. Thang: "What do you think about the novel?" Huong: "………………..." A. I wish I could buy one. B. I can't agree with you more. C. Yes, let's read it so many times. D. The best I've ever read! Câu 6: An old gentleman, who is not sure where to go for the summer holiday, is asking a travel agent for advice. Select the most suitable response to fill in the blank. Gentleman: “Can you recommend any places for this summer holiday?” Agent: "………………..." A. Yes, please go to other agencies B. A package tour to the Spratly Islands would be perfect, sir C. I don’t think you could afford a tour to Singapore, sir D. No, you cannot recommend any places Câu 7. – “Would you like some more tea?” – “_______” A. Yes, please B. Yes, thanks C. No, thank D. No, please Câu 8. “That’s a nice dress you are wearing” – “_______” A. I’m glad you like it B. That’s alright C. That’s nice D. You’re quite right Câu 9: Tom: I thought your tennis game was a lot better today, Tony. Johny: _______ ! I thought it was terrible. A. No, I don’t think so B. You can say that again C. Thanks! Same to you D. You’ve got to be kidding Câu 10: John: “I think that a happy marriage should be based on love.” Rachel: “ _______ .” A. Yes. I completely agree with you B. Thank you. C. No, it shouldn’t. D. You think so? Câu 11 : - Jack: “Excuse me, but could I trouble you for some change?” - Alex: “ _______ . Will pennies do?”' A. I know B. Never mind C. I am sure D. Let me see Câu 12: - Waiter: “May I take your order now, sir?” - Mr. Smith: “ _______ .”' A. Thanks, I’ve really had enough B. Ok, here is my bill C. Yes, I’d like some fish and chips D. Sure, it’s delicious Câu 13. “I think that the youth are high-flying but inexperienced” - “ _______” A. There’s no doubt about it. B. Certainly C. Are you kidding me? D. It’s nice of you to say so Câu 14. - Janet: “_______” - Ellen: “Thanks. I will write to you when I come to London.” A. Better luck next time B. God bless you C. Have a nice trip D. Have a go Câu 15. - Mai: You look great in this new dress, An! - An: _______ . A. With pleasure. C. I am glad you like it. B. Not at all. D. Do not say anything about it. Câu 16. Ken and Tom are high - school students. They are discussing where their study group will meet. - Ken: “Where is our study group going to meet next weekend?” - Tom: “ _______” A. Studying in a group is great fun. C. We are too busy on weekdays. B. Why don’t you look at the atlas? D. The library would be best Câu 17: - “What an attractive hair style you have got, Mary!” - “_______” A. Thank you very much. I am afraid B. I don't like your sayings C. You are telling a lie D. Thank you for your compliment Câu 18: John: “Can you tell me the way to the nearest post office?” àNam: “_______”. A. It opens at nine o'clock. B. Turn left and then right. C. You can walk or go there by taxi D. It's about two kilometers. Câu 19. - Mai: You look great in this new dress, An! - An: _______. A. With pleasure. C. I am glad you like it. B. Not at all. D. Do not say anything about it. Câu 20. Ken and Tom are high – school students. They are discussing where their study group will meet. - Ken: “Where is our study group going to meet next weekend?” – Tom: “_________”. A. Studying in a group is great fun. C. We are too busy on weekdays. B. Why don’t you look at the atlas? D. The library would be best.
Imagine that you and two friends are going to attend a festival 10 kilometres . You are discussing what means of transport to use: bus, bicycle.Read the e-mail from one of your friends
Nêu nhược điểm của renewable sources và non-renewable sources ( viết thành câu văn liền mạch, có câu dẫn, viết khoảng 5 câu ) Giúp mik nhanh hộ nhaaaa ! Cảm ơn các bạn nhìuuu
Cung AB là cung lượng giác của điểm đầu là A điểm cuối là B cho bát giác đều có điện tích là 50cm2 1, tính các cạnh của bát giác 2, tính diện tích của đg tròn ngoại tiếp bát giác đều
Nêu cách tính lượng mưa trong ngày, trung bimhf trong ngày, trung bình lượng mưa mỗi tháng trong năm ?
Làm hộ với khó quá gải nhanh hộ với
tại sao chất rắn, chất lỏng đều nở vì nhiệt nhưng vẫn có hiện tượng nước tràn ra ngoài nếu chúng ta đổ đầy?
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