cho 19,3g hh bột ( zn, cu) có tỉ lệ số mol tương ứng là 1:2 vào dd chứa 0,2 mol Fe2(SO4)3 , sau khi các pư xảy ra hoàn toàn thu đc a g kim loại , tính a

Anh chị sáng tác cho em một bài thơ về chủ đề môn học mà em yêu thích nha

Mình nghĩ bài này là 1 bài khó nên bạn nào giúp đc mình thì giải thích cho mình với nhé CÓ GIẢI THÍCH CỤ THỂ.

Làm hộ em câu 2 , ít nhất phải 5 phần trở lên Ko spam

Biết 20 thếp giấy nặng 18,4N. Hỏi mỗi thếp giấy có khối lượng bao nhiêu ?

Vẽ dùm mik 1 chàng trai đang dựa lưng vào tường đứng dưới mưa quay sang bên trái và 1 cô gái đứng dựa lưng vào tường quay mặt sang bên phải, kiểu nhớ nhau nhưng ở xa í. Vẽ nguyên bằng chì nhé, ký bên con trai Cường, bên con gái là Ngọc nhé Vẽ hộ mik nha pls

Cho tam giác ABC . Gọi H,G,O lần lượt là trực tâm , trọng tâm và giao điểm 3 đường tròn của 3 đường trung trực trong tam giác . CMR a )omn đồng dạng hab b )gom đồng dạng gha C )ohg thẳng hàng và gh=2og

Question 34: The demand was so great. They had to reprint the book immediately. A. They demanded that the book be reprinted immediately. B. So great was the demand that they had to reprint the book immediately. C. The book would be reprinted immediately since the demand was great. D. They demanded to reprint the book immediately. Question 35: He did not work hard. He failed the exam. A. Even though he failed the exam, he didn’t work hard. B. Unless he had worked hard, he would have failed the exam. C. If he had worked hard, he would have passed the exam. D. However hard he worked, he failed the exam.

Question 31: Much to my astonishment, I found his lecture on wildlife conservation extremely interesting. A. Contrary to my expectations, his lecture on wildlife conservation was the most fascinating of all. B. I was fascinated by what he said in his lecture on wildlife conservation though I hadn’t expected it to be. C. I hadn’t expected him to lecture on wildlife conservation, but he spoke well. D. It was at his lecture on wildlife conservation that I realized I needed to study it. Question 32: Although he was able to do the job, he wasn’t given the position. A. The position wasn’t given to him in spite of his ability to do the job. B. He was given neither the job nor the position. C. Because he couldn’t do the job, he wasn’t given the position. D. He got the position despite being unable to do the job. Question 33: It is certain that the new cuts will worry the staff. A. The new cuts certainly worry the staff. B. The new cuts will be certainly worry the staff. C. The new cuts are bound to worry the staff. D. The new cuts will be bound to worry the staff

giúp minh với ạ, vote 5*+ctlhn