cho 36,4 gam hh hai kim loại fe và zn vào 20 ml dd hcl thì thu được 3,36 lít khí h2 chứng minh axit hết

Giúp mk bài 4 trong giầy vs btap trên bảng

giải giúp mình câu 2b với ạ, mình cảm ơnn

Bài văn một trang giấy giới thiệu đi tích Phủ Giầy

Giúp mình với Bài 1 : Viết tập hợp A biết : Tập hợp A là các số có 2 chữ số chia hết cho 2, 5 Bài 2 : A = { x thuộc N I 12 < x < 16 } B= { x thuộc N* I X < 5 }

các bn giỏi giúp mình b1 Cho a,b ∈ Z , b $\neq$ 0 cho a,b ∈ Z , b $\neq$ 0 . So sánh $\frac{a}{b}$ và $\frac{a + 2020}{b + 2020}$ b2 Cho c > 0 , chứng minh rằng $\frac{a}{b}$ < $\frac{a+c}{b+c}$

Vẽ cho trang 2 pic nỳ Mong mod ko xóa của iem Ko vẽ ẩu

40. The old students one another in the school yard. a. clutched b. gathered c. greeted d. looked 41. My brother is the guitar. a. mending b. constructing c. doing d. building 42. The teacher is always strict his naughty pupils. a. of b. to c. about d. with 43. - Must I lock the door before I leave? - No, you Someone can do it for you." a. mustn't b. needn't c. don't d. haven't 44. Everybod y healthy and good looking. a. looked at b. looked c. looked of d. looked after 45. Hoa is She doesn't have any friends. a. lonely b. alone c. unique d. available 46. He's just come back his farm. a. from b. in c. of d. for 47. After he his homework, he went to bed. a. had finished b. has been finishing c. has finished d. would finish 48. The old pupils gather and talk to _________________ a. happily b. one another c. together d. in the school 49. The new supermarket is for more salesmen, a. advertising b. informing c. requesting d. advising 50. My new job is much _______________ a. interesting b. interested c. interest d. interests

Hướng dẫn cách dùng medibang paint pro Mod đừng xoá của em

21. Manchester players tried hard to even up the score, but they were_______________________. a. unsuccessful b. success c. successful d. succeed 22. Wethem_________________ a visit last week. a. gave b. paid c. asked d. did 23. Faraday attended a lecture____________________ by a famous scientist. a. giving b. gave c. given d. to give 24. He is very intelligent. He can speak English and two other___________________. a. voices b. sounds c. torches d. languages 25. Nam was so tired that he__________________ asleep in the class. a. got b. felt c. went d. fell 26. The man always keeps regular daily___________________. a. activities b. works c. jobs d. movements 27. The players___________________ tobe at the stadium at 3 o'clock. a. told b. were told c. have told d. tell 28. There is a ________________ of the dead soldiers in that park. a. revolution b. memorial c. memory d. movement 29. It is twenty _______________eleven. a. pass b. past c. passed d. passing 30. The day promotes the__________________ of the working people. a. language b. leader c. contrast d. solidarity 31. My mother is very grateful_______________ your help. a. to b. with c. at d. for 32. He is considered to be the_________________ of the movement. a. storey b. article c. leader d. activity 33. Is this film worth_________________ ? a. to see b. seeing c. see d. to have seen 34. The painting is one of his famous__________________ a. greatness b. works c. monuments d. thoughts 35.________________ she's got an English name, she is in fact Vietnamese. a. Despite b. Although c. In spite of d. More than 36. ___________________this occasion, you'll know more about them. a. On b. At c. In d. of 37. More than one person___________________ going to do ________________duty. a. is / their b. are/his c. are/their d. is/his 38. He looked very__________________. a. curious b. curiosity c. curiously d. curiousness 39. - "Dick is so lonely." - "I'd like him_______________ a nice girl." a. finds b. to find c. finding d. find