Ghi kết quả thôi, thank trước ạ hứa đánh giá tốt theo yêu cầu

Cho 0,1 lít dung dịch NaOH 3M tác dụng vừa đủ với dung dịch Fe2(SO4)3 thu được kết tủa X. a, Tính khối lượng của X b, Cho toàn bộ lượng kết tủa trên vào 100 ml dung dịch HCl 2M . Hỏi kết tủa có tan hết không ?

Giải giùm mik câu a) của hai bài trên với😥

Bài 9 thôi ạ . Giúp mình với nhé

Cali : Quốc Bảo Yc: Trang trí đẹp. NL: Nhớ vẽ đẹp,rõ nếu có bức nào hay thì mik sẽ lấy làm avt ><

ai giúp em với 1. Before we make a decision, we need _______ our options. A. to considering B. to consider C. considering D. consider 2. The Internet has enabled people to _______ with each other more quickly. A. interconnect B. interlink C. interact D. intervene 3. We expected _______ her here, but I guess she decided not to come. A. to see B. seeing C. to be seen D. being seen 4. You’re not allowed _______ when the red flag is flying. A. to swim B. swimming C. swim D. to be swim 5. A(n) _______ consists not only of parents and children but also of other relatives, such as grandparents and unmarried aunts and uncles. A. nuclear family B. nuclear house C. extended family D. extended house 6. Hospitals are being forced _______ departments because of a lack of money. A. closing B. being closed C. to closing D. to close 7. Once he made _______ his mind to do something, nothing could stop him. A. over B. in C. up D. off 8. You need to set a time _______ a family talk and stick to the schedule. A. on B. for C. with D. about 9. My mother always worries _______ me when I don’t come home by midnight. A. of B. about C. for D. in 10. The shopkeeper warned the boys not _______ their bicycles against his windows. A. to lean B. leaning C. to leaning D. being leaned 11. He’s not afraid to learn _______ his mistakes. A. about B. by C. from D. with 12. Your father is very kind _______ David. A. with B. for C. to D. in 13. He’s a very influential person because he can make other workers _______ his advice. A. follow B. watch C. attend D. comply 14. When I was a child, my mother used to teach me table _______ A. manners B. rules C. problems D. norms 15. Although we like his plan in general, we don’t _______ with him on every issue. A. take B. except C. agree D. accept 16. You shouldn’t judge a person by their _______ because you don’t know their story. A. shape B. dimension C. appearance D. size 17. After graduating from university, I want to _______ my father’s footsteps. A. follow in B. succeed in C. go after D. keep up 18. I quite sympathize _______ you for your losses _______ the stock market! A. with - on B. for - off C. over - in D. at - upon 19. The staffs were doing their _______ in horribly cramped and noisy conditions. A. better B. good C. best D. well 20. I got into _______ with Tiffany when she found out that I had started that rumor about her. A. warfare B. discrimination C. gap D. conflict 21. We were very _______ with the high level of participation in the charity events. A. please B. pleased C. pleasure D. pleasant 22. Their parents try to _______ their choices of university or career on them regardless of their children’s preference. A. object B. obey C. impose D. forbid 23. He’s obviously really embarrassed about it because he forbade me _______ anyone. A. to tell B. telling C. to telling D. being told 24. State agencies were ordered _______ all nonessential energy use. A. to cut B. cutting C. to be cut D. to have cut 25. I want to make _______ with all the people I am going to work with. A. counterparts B. peers C. friends D. colleagues 26. Older people _______ of a large proportion of those living in poverty. A. comprise B. consist C. compose D. compound 27. The infection is _______ an injury he suffered last year. A. related to B. interested in C. paid all attention to D. expressed interest to 28. The $10,000 loan from the bank helped her _______ her own business. A. to start B. being started C. to have started D. starting 29. All our agents are currently _______ with other customers. A. buried B. busy C. absorbed D. helping 30. The law applies to everyone _______ of race, creed, or colour. A. disrespectful B. regardless C. considering D. in spite 31. I have no objection to _______ to your story again. A. hear B. be heard C. listening D. listen 32. Charles Dickens was born near Portsmouth, Hampshire on 7 February 1812, but relocated to and _______ in Camden Town in London. A. grew up B. came back C. called away D. left out 33. The hotel certainly compared favourably _______ the one we stayed in last year. A. between B. among C. with D. on 34. If the service was so bad why didn’t you _______ to the manager? A. complain B. exchange C. account D. arrange 35. It was essential for him to be financially _______ of his parents, so he decided to find a part-time job. A. dependable B. independent C. undependable D. dependent 36. Their success is based on innovative products and the confidence to break the A. etiquettes B. forms C. patterns D. rules 37. Using smart phones in class can distract students _______ studying. A. for B. to C. with D. from 38. They would like to wait for the group to decide _______ making individual decisions. A. rather than B. other than C. prefer to D. better than

Không cần chữa lỗi chỉ cần ghi KQ

Hứa vote,gấp lắm ạ 1. Yesterday, I (go)______ to the restaurant with a client. 2. This house (stand) ______________for centuries. 3. I(see)_______________ that film several times because I like 4. I (not go) ______ to school last Sunday. 5. She (get) _________ married last year? 6. What_________ you (do) ______ last night?- I (do) ______ my homework. 7. We (do)____________ exercise at this time tomorrow. 8. Yesterday, I (get) ______ up at 6 and (have) ______ breakfast at 6.30. 9. ______ he (walk) ¬¬¬¬________to school yesterday? - No, he ___________. 10. In the future, robots (be)__________ able to understand what we say. 11. People ( speak) _________ English and French in Canada 12. They ( not do) _________their homework last night. 13. He (not smoke)___________ for two weeks. He is trying to give it up. 14. My wife and I (travel)____________to Mexico by air last summer 15. I (have)____ a little trouble with my car last week 16. She (have)___________ coffee for breakfast every morning. 17. This is my house. ~How long___ you (live)_______ here? ~ I (live)__________ here since 1970. 18. There (be)___________ 20 rooms in my future house. 19. Be quiet! The baby (sleep) ______________________. 20. Hoa could ( play) _________ piano, but now she can’t. 21) Alice is in her room right now. She ......................( read) a book. 22) My father usually ................( watch) TV when he............ ( have) free time. 23) He ..........( walk) to school everyday. He .................( not, take) the bus. 24) How old .......... she ............ on her next birthday? (be) 25) What .............you ..............................( do) tonight? 26) We ........................( have) an English test at 9 o'clock tomorrow. 27) Mai ....................( be) interested in.................... ( study) Music. 28). Be careful! The teacher( look)…………...……..at you. 29) Where(be)………your mother? – She( cook)……............. lunch in the kitchen. 30. It often ...................( rain ) in summer . It .......................( rain ) now . 31.She and I ( like ) .......................( watch )............................... TV very much . 32.The sun (rise) ____________ in the east and (set) ____________ in the west. 33.He ......................(not do) morning exersices regularly. 34.He ....................(be) a taxi driver in Germany since 1985. 35.He ...............................(not understand) what he said last night. 36.Hai......................................(read) this book before. 37.She ................................... (not do) homework yet. 38.They ........................................ (visit) their grandparents for two weeks. 39.Our teacher usually ........................(give) us many exersices. 40.He often ........................(catch) a train to work. 41.They ...........................(plant) trees overthere at this time tomorrow. 42.She ..........................(go) to England several times. 43.She .......................(spend) all her money last week. 44.John and his father.............................. (build) the cabin themselves last year. 45.....................Ba.................. (write) to their friends every summer holiday? 46.Mai and Nam .................(go) to the movie theater tomorrow evening. 47.They ..........................(never play) soccer before 48.you.............................. (ever/ see) this film?. 49.Mr.Mai ...............................(water) the plant every morning. 50. At this time tomorrow evening, We ............................. (play) computer games.

Giúp em bài 10 phần b,c,d nhé ạ

$\frac{2.a^4+3.a^3+2a+3}{(a^2-a+1).(2a+3)}$ Giải chi tiết nha