Ai giải giúp mình bằng cách bảo toàn vs ạ Hòa tan hết m gam hỗn hợp X gồm Na, Na2O, K, K2O, Ba và BaO trong đó O chiếm 8,75% về khối lượng vào nước thu được 400 ml dung dịch Y và 1,568 lít H2 (đktc). Trộn 200 ml dung dịch Y với 200 ml dung dịch Z gồm HCl 0,2M và H2SO4 0,15M thu được 400 ml dung dịch T. Để trung hòa hết dung dịch T cần phải thêm 40 ml dung dịch HNO3 1M. Các phản ứng xảy ra hoàn toàn. a. Tính m b. Nếu cô cạn dung dịch Y thì thu được bao nhiêu gam chất rắn khan

II. Complete the sentence using an adjective or adverb. 1. He’s always in a rush. I don’t understand why he walks so ____________ (quick/quickly). 2. I prefer studying in the library. It’s always_______________ (quiet/quietly). 3. Michael ___(happy/happily) took the assistant job. He had been looking for a position all summer. 4. Marta dances ______ (beautiful/beautifully). She’s been taking ballet since she was five years old. 5. They speak French very ____________ (good/well). They lived in France for two years. 6. My neighbor always plays _______ (loud/loudly) music on the weekends. It’s so annoying. 7. Please be __________ (careful/carefully) in the hallway. The walls have just been painted. 8. Dan is very smart, but he is not a very___________ (good/well) student. 9. He reacted __________ (angry/angrily) to the news. I have never seen him so upset. 10. We didn’t ______________ (complete/completely) understand the teacher’s instructions. Most of us did not finish the assignment. 23. Of the four dresses, I like the red one (better/ best). 24. Pat’s car is (faster/ fastest) than Dan’s. 25. John is (less/ least) athletic of all the men. 26. Does Fred feel (weller/ better) today than he did yesterday? 27. My cat is the (prettier/ prettiest) of the two. 28. This vegetable soup tastes very (good/ best). 29. David is the (happier/ happiest) person that we know. 30. The museum is (the further/ the furthest) away of the three buildings. 31.If you ask me (nice/ nicely), I will lend you my bike. 32.Your Spanish is quite (fluent/ fluently.) 33.My mother doesn’t cook very (good/ well) but she can make (delicious/ deliciously) scrambled eggs. 34.The baby is usually (cheerful/ cheerfully) in the morning 35. We ran (quick/ quickly) to catch the 9 o’clock train. 36.This dress looks (nice/ nicely) on you. 37.Ms.Jane is a very (careful/ carefully) driver 38.We spent the day basking (lazy/ lazily) in the sunshine. 39.The Maths test was (easy/ easily) for me. 40. I’m usually a (slow/ slowly) walker.

Tìm GTLN (GTNN) của các biểu thức sau : D = $\frac{x - 3}{ x + 2}$ với x thuộc Z ; x khác (-2) Giúp em với mn !!!!

cho hình vuông ABCD, M , N lần lượt thuộc AD và DC sao cho AM = DN. Gọi H là giao điểm của AN, BM Chứng minh M, D, N H cùng nằm trên 1 đường tròn

giải giúp mình 2 bài này nhé : 1. Điền dạng đúng của các từ trong ngoặc : 1) Anna has a large_______of dolls (collect) 2) I find woodcarrving_______because it's a creative activity (interest) 3) My sister's hobby is________. She took a lot of nice photos (photo) 4) A hobby is an________that you do for pleasure (act) 5) I think collecting glass bottles is_______. (usual) 2. Tìm và sửa lỗi sai : 1) Nam is my classmate. He watches TV every night 2) I think collecting stamps are interesting 3) My dad cooks very good. He love preparing meals for our family 4) I enjoy to ride my bike to school 5) We usally go in a small lake out of the city at weekends 6) Do you still play football next year? 7) Do you think bird-watching interestng?

tìm số gạch dùng để xây một cái thành dài 20m rộng 0,5m cao 2,5m với những viên gạch đáy vuông cạnh dài 1dm cao2dm và thể tích mạch hồ chiếm 2,5m khối

Viết thủ tục để vẽ hình tam giác có nét màu xanh biển

Tìm GTNN -x^2+6+7 helppppppppppppppppppp

Vẽ anime vui vẻ cố gắng bước tiếp NL : Cho mik xin 5 ảnh BFF đẹp nha

Sắp xếp theo giá trị từ nhỏ đến lớn A) sin 45° , cos 35° , cos 70° , sin 50° , cos 80°