he never allows his children <come> back after 9 p.m chia v mn ơi giúp vs ạ

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

Giải giúp mình vs, đang cần gấp .hứa sẽ vốt 5*cho bạn nào giải đúng

Cân bằng các phản ứng sau a. CaO + H2O suy ra Ca (OH) 2 b. Na2O + H2O suy ra NaOH c. Fe2O3 + H2SO4 suy ra Fe2 (SO4)3 + H2O

Đời cha cho đến đời con Có muốn nặn tròn thì phải nặn .... giúp mình với

'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

Các dạng oxi hóa khử Cần gấp lắm nha mng

a)tìm x thuộc z biết Ix^2 -10I = 10 - x^2. b)Tìm 3 số nguyên tố có tổng là -4. Nếu lấy số thứ 1 nhân 2; số thứ 2 cộng 3; số thứ 3 trừ 4 thì được các kết quả bằng nhau

Giải nhanh giúp tui tất cả các bài trong ảnh vs đang cần gấp lắm ạ. Thank you very much!