Câu 1.Đốt cháy hoàn toàn một hidrocacbon X thu được 13,2 gam CO2 và 7,2 gam nước. X là:

nhận xét về cách Nguyễn Tri Phương tổ chức nhân dân kháng chiến ở Đà Nẵng, Gia Định? (chỉ ra ưu điểm và nhược điểm) giúp em với ạ TvT em cảm ơn

Ai giúp mình bài này với, đặc biệt là cách trình bày huhu😭😭😭 mình rất cảm ơn Huhu nhanh lên mấy bạn ơi mình cần gấp lắm Mình đã tăng thêm điểm rồi đó huhuhu~~~

1,Viết đoạn văn nêu suy nghĩ của em sau khi học xong văn bản Bài học đường đời đầu tiên. (8-10 dòng) 2,Nêu cảm nhận của em về nhân vật Dế Mèn trong đó có sử dụng ít nhất 2 phó từ. (8-10 dòng )

Giải giúp em bài tập Xin cảm ơn

V.Fill in each blank with ONE appropriate word. 1.On the first day of Tet, people often go to ………………………to pray for a good new year. 2.If you visit England, you can go see Buckingham ……………………………………..…….. 3.I think that good health is……………………………………………..important than money. 4.I’m just going to the…………………………………… to buy some medicines and bandage. 5.You should put ……………… on your skin to protect it from the harmful effects of the sun. 6.Titov island in Ha Long Bay was named …………… a Russian cosmonaut, GhermannTitov. 7.The Sahara is the third…………….……………………………………….desert in the world. 8.Minh’s father is a farmer. He works on the ……………………….………………………… 9.Mary and I would like to ………………………….……………. English speaking club. 10.Lan can’t reach the book on the shelf……………………………………………..she is short. VI. Write the correct form or tense of the verbs in brackets. 1.Vietnamese people …………………..……….. (celebrate) Lunar New Year every year. 2.This Tet, my family ……………………………(not buy) Chung cakes. We will make them. 3.We usually ………….….(stay) at home on holiday, but this holiday we …………. (travel) abroad. 4.You shouldn’t ……………….………………….(wear) white clothes on the first day of Tet. 5.People spend a few days ……….……………………………(clean) their houses before Tet. 6.Tet …………………….…………………………..(occur) in late January or early February. 7.Miss Helen (help)…………………… us as soon as she (finish)...................................that letter. 8.Phong loves ………………………………………………...(eat) traditional food during Tet. 9.You must …….…………………………………….……(take) a boat ride around the island. 10.After …..…… (get) up, children get dressed in new clothes and say wishes to their parents. VII. Use the given words to write the complete sentences. 1.Vietnamese people / often / clean / decorate / houses / Tet. ………………………………………………………………………………………………… 2.Angel Falls / Venezuela / high / waterfall / the world. ………………………………………………………………………………………………… 3.It / very / interesting / take / boat trip / the Perfume River. ………………………………………………………………………………………………… 4.Which / dry / Sahara Desert / or / Atacama Desert? ………………………………………………………………………………………………… 5.Ha Noi / capital / Viet Nam. It / history / more than 1,000 years. ………………………………………………………………………………………….……… 6.Eat / and / talk / friends / be / most common ways / relax / recess / many countries. ………………………………………………………………………………………………… 7.Could / tell / how / get / police station / please? ………………………………………………………………………………………………… 8.How much / cost / mail / letter / USA? ………………………………………………………………………………………………… 9.What time / Mai / usually / go / school ? ………………………………………………………………………………………………… 10. This exercise / not / so / difficult / that one. ………………………………………………………………………………………………… VIII. Complete the second sentence so that it means the same as the first one. 1.Shall we go to the Japanese Covered Bridge first? Let’s …………………………….…………………………………………..…….…………! 2.No one in the office is cleverer than Mr. Edward. Mr. Edward ………………………………………………………………………..…..……. 3.Travelling abroad for a holiday is much more expensive than travelling in your country. Travelling in your country………………………………………………….………………… 4.She goes to work at eight forty-five. She goes to work at fifteen ………………………..……………….……………..……….. 5.Would you mind telling me the way to the National Museum? Can………………………….………………………………………………………, please? 6.Vietnamese students have fewer vacations than American ones. American students ……………………………….………………..…………..……………… 7.It’s against the rules to use your mobile phone in class. You……………………………………………………………..…………………..…………. 8.We have a two - month summer vacation. Our summer vacation lasts……………………………….………………………………...… 9.It’s a good idea to listen to the weather forecast before going camping. You ……………………………………………..……………………………………………. 10. Nam isn’t so good at English as Minh. Minh ……………………………..than Nam. IX.Read the passage then do the tasks below. Hi! I am Nam. I’m twelve years old. I’m a student in grade 6, class 6A2. I live with my parents and my sister. We live in a small house in the country. This is my school. It is small and old but it is beautiful. In front of the school, there is a big yard. It is clean and there are many tall trees and beautiful flowers. In the afternoon, I often play soccer with my friends there. My school has fifteen classrooms and six hundred students. There are forty-three teachers in my school. They are good teachers. I love them and I love my school very much. a. Answer the questions. 1.Where does Nam live?  ………………………………………………………………………………………………. 2. Are there many tall trees and beautiful flowers in the school yard? …………………………………………………………….…………………………………. 3. How many teachers does his school have? ……………………………………………………………..…………………………………. b. Complete the sentences, using the information from the passage above. 4. ………………….…………………………….…………is small and old but it is beautiful. 5. In the afternoon, Nam often plays soccer with his friends in the ……..…………

Giúp em với anh và chị ơn em xin cảm ơn

Cho 2,8 gam kim loại Fe tác dụng đủ với 9,2 gam dung dịch axit HCl. Sau phản ứng thu được dung dịch muối FeCl2 và giải phóng 0,1 gam khí H2 . Tính khối lượng dung dịch muối FeCl2 thu được?

Cho tam giác nhọn abc có các đường cao AD,BE,CF cắt nhau tại H.Gọi K là giao điểm của AH,EF,N là trung điểm AH . Đường thẳng A song song với BN cắt BC tại M.Gọi P là giao điểm Mk và AB a)CM tam giác AEF đồng dạng tam giác ABC b)CM EB là phân giác góc DEF c) HK/HD = NH/ND

cho tam giác ABC vuông tại A có AB=6cm,AC=8cm,AD là phân giác góc BAC(D thuộc BC). Tính dài DB và DC