user-avatar
dieudunghamham
2 năm trước
x là hợp chất của N2 và H2 khối lượng của 1l khí X trong ĐKTC bằng 0,759g a. xác định công thức hóa học của X b. Tính khối lượng x điều chế được từ 11,2m3 N2 và 44,8m3 H2. Biết rằng hiệu suất của phản ứng tổng hợp X là 25% các thể tích đo ở ĐKTC
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

'own virus uit he ! 27. There has been a .ned.u.cing. ms fr higgs buying the new books. (reduce) 28. She always listens..attention........... to what she is told. (attend) 29. The Saigon Giai Phong is a of 10% in the amount of the money available for 30. He was a strict ...ex aminer he asked me a lot of difficult questions. (examine) III. Arrange these words/phrases into their correct orders: 31. spend/ than/ more time/ designers/ at the drawing/ at the computer/ these days, / board. daily. ....... newspaper. (day) these dag Denignen.np.end.me.e.time.a.. 32. more tourists/ the image/and attract/ to changel hopel of the city/ they/. hey.hop.e..change. 33. to use / to get/ two kilometers/ she walked/ for her family/ a day/ enough water/. 34. heldoesn't apply/ doesn't have/ for the job/ becausel enough qualifications/ Nam/. 35. need/ to be protected/ being destroyed/ by tourists/ from/ these historical sites/. 36. team/ has madel famous/of our local football/ our city/ the success/. IV. Choose the right word to fill in the blanks in the following passage: Speech is one of the most important (37) making noises. To talk and also to be (38) Learning a Language of communicating. It consists of far more than jus by other people, we have to speak a language, ot otond for a on ca TV? mput s o c sp. the r (infor ularize) worldw ssengs

me to take this examination. COURA UlLuI. (Complete) My teacher to force the door open. 18- He used all his 19-The police are interested in the sudden 20- The teacher gave his students 21- The Saigon Giai Phong is a 22- Thousands of people have been made STRONG of the valuable painting. APPEAR to leave the classroom. PERMIT DAY You should go on a diet. You're a bit by the war. TEST 4 newspaper. WEIC HOME I. Choose the word which is pronounced differently from the other. 1. A. passage B. village 2. A. changed 3. A. hope 4. A. shut 5. A. chair II. Pick out the word that has the main stressed syllable different from the others : 1. A. dormitory 2. A. comprise 3. A. puppet 4. A. information 5. A. linguistics III. Choose the best answer to complete these following C. message B. learned B. offer B. cut B. chin C. laughed C. shop C. sun C. chemical D. cheek D. massage D. earned D. stop D. push C. institution C. picnic C. language C. logically C. pagoda D. reputation D. poet D. until D. separation D. grocery B. intermediate B. equal B. novel B. inspiration B. occasion

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