user-avatar
nguyenthecuong180784
2 năm trước
quangcuong giúp e với Cho m (g) Al tác dụng HNO3 sinh ra Al(NO3)3, hỗn hợp NO và NO2 có tỉ khối hơi so với H2 là 19 tỉ lệ mol HNO3 tham gia làm môi trường và oxi hóa :
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

PART B. LANGUAGE FOCUS I. Choose the best answer A, B, C or D to complete the sentences: 1. Vietnamese students play different sports and games____________ the break time. A. in B. on C. during D. from 2. Phuc is__________________student in the class. A. intelligent B. more intelligent C. the most intelligent D. intelligentest 3. Football is an _________________ game. A. outdoor B.indoor C. sporty D. outside 4. My brother likes watching TV________________I like going out with my friends. A. and B. but C. or D. so 5._____________________eat too much sugar. It’s not good for you A. Do B. Don’t C.Please D. Can’t 6. “I’ve just received a scholarship.” - “_____________!” A. Really B. Thank you C. Congratulations D. Well 7. I_________________ to Thailand four times. A. have gone B. have been C. went D. visited 8. __________________ ? Yes, I’d like some beef, please. A. Can I help you? B. Shall I help you? C. What would you like? D. How much beef do you like? 9. The three Rs __________________ for Reduce, Reuse and Recycle. A. stand B. make C. sit D. explain 10. ______________________do you go to the cinema? By bus. A. What B. How C. Why D. When II. Supply the correct tense or form of the verb in parentheses: 1. If he(wash) __________________ my car, I (give) ______________him $10 2. Nga (not meet) ______________her parents since last Sunday. 3.I first ( visit)_________________ Singapore in 2000. 4. Children (study) ________________in their rooms at present. PART C. READING I. Read the following passage and put a word in the box in each of the numbered blanks: intheredirtydestroyinganimals We are (1)……….the earth. The seas and rivers are too (2)……….. to swim in. There is too much smoke in the air in many cities(3)………… the world. We are also destroying lots of plants and (4)……….... Many areas of the earth are wasteland. Farmers in many parts of the world cannot grow enough food to eat. In some countries (5)………is too little rice. The earth is in danger. Save the Earth! II. Choose the correct word A, B, C or D for each gap to complete the following passage. I live in a small village. There (1)……………….…..about 600 people here. I love the village (2) ……………….it is very quiet and life is slow and easy. The village is always clean. People look (3)…………………it with great care. The air is always clean, (4)………….. It is much (5)………… friendly here than in a city. 1. A. have B. is C. are D. has 2. A. but B. and C. or D. because 3. A. after B. for C. at D. to 4. A. also B. too C. so D. either 5. A. most B. as C. more D. same

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team