Cho 2,4 gam magie tác dụng vừa đủ với dung dịch axit clohiđric ( HCl ), thu được 9,5 gam muối magie clorua MgCl2 và 0,2 gam khí hidro. a, Viết phương trình chữ của phản ứng. b, Cho biết các chất tham gia, các chất sản phẩm trong phản ứng. c, Tính khối lượng axit clohiđric đã dùng.

Nguyên tử của nguyên tố Y có tổng số hạt trong nguyên tử là 34. Số hạt mang điện nhiều hơn số hạt không mang điện là 10. Xác định 3 loại hạt cấu tạo nên nguyên tử nguyên tố X.

ai làm được tất cả mình vote cho hơn 10 lần 1. Make sentence with (to) have, and then answer. 1. The girl/ short hair? X Does the girl have short hair ? No, she doesn’t 2. Harry Porter/ big eyes ? X _______________________________________________________________________ 3. The dog /long tail? V _______________________________________________________________________ 4. You / round face? V _______________________________________________________________________ 2. Put one of these words in each blank. play do have plays does has 1. We often ________________ hide – and – seek at break time. 2. Binh _______________ judo everyday so he is healthy. 3. My father ________________ breakfast at 6.30. 4. Nam often ________________ football with his friend after finishing class. 5. My sister and I ________________ her homework in the evening. 6. I _________________ English and Maths today. 7. Thao usually ___________________ the guitar in her free time. 8. Does Mrs Lam __________________ lunch with her friends? 9. They are healthy. They _______________ morning exercises in the morning. 10. My father often ___________________ the gardening at weekend 3. Make questions for the underlined words 1. He goes to school at six thirty. _______________________________________________________________________ 2. Mr. Nam is a teacher. _______________________________________________________________________ 3. Mr. Quang lives in Ha Noi. _______________________________________________________________________ 4. We live on Le Duan street. ____________________________________________________ 5. Every afternoon I play games. _______________________________________________________________________ 6. It’s ten past eleven.___________________________________________________________ 7. These are pencils. _____________________________________________________________ 8. She has breakfast at eleven thirty. _______________________________________________________________________ 4. Chia đông từ ở thì hiện tại đơn 1. Every evening, Nga________________ her homework. (do) 2. There_____________ a hospital, a factory and a stadium near my house. (be) 3. My school____________ four floors. (have). 4. We _____________________ English now.( study) 5. Kien often_______ his bike to visit his hometown.( ride) 6. Every evening, Nga________________ her homework. (do) 7. There_____________ a hospital, a factory and a stadium near my house. (be) 8. My school____________ four floors. (have). 9. She ______________________ English now.( study) 10. Kien often________________ his bike to visit his hometown.( ride) 11. Now, Lan (study)________________English and Lien (listen)______________to music. 12. Every night , she (have)____________________dinner at 7.00 p.m. 13. Every year, I usually (go)______________________Vietnam. 14. In the summer, I sometimes (go)____________________swimming. 15. Every evening, my mother (like)___________ watching television. 16. Lan (have)_______________breakfast and (go)___________to school at 6.30 a.m. 17. We (not read)___________________after lunch. 18. Tom (be)___________my friend. He (play)______________sports everyday. 19. ______________your students (play)__________soccer every afternoon? 20. He (go)_____________to bed at 11.30 p.m. 21. They (go)___________home and (have)___________lunch. 22. ___________he (play)__________sports? 23. He (teach)_______________English in a big school in town. 24. Everyday she (go)____________to work by bike. 25. We usually (read)_________books, (listen)_________to music or (watch)_______TV. 26. Sometimes, I (play)__________badminton. 27. Ann (like)____________her job very much. 28. ___________your mother (walk)_________to the market? 29. Look! They (run)_________________________together. 30. Where ___________________Mr. Ha (live)_______________? 5. Read the text and choose the words to fill in the blanks. beautiful has and have near hotel are student live Hello. My name’s Thuy. I’m a (1)_____________. I have a brother, Minh. He’s twenty. We (2)______________ in a house near a lake. Our house (3)_________________ a yard. It’s (4)_________________ here. There is a river (5)_______________ a lake. There is a hotel (6)________________ the lake. There is a park near the (7)_____________. There (8)____________ trees and flowers in the park. There is a rice paddy near our house. 1. 2. 3. 4. 5. 6. 7. 8.

cho tam giác abc vuông tại a có đường cao ah. biết ab=13cm bh=0,5dm tính tỉ số lượng giác góc C

Hãy tả một diễn viên nữ hàn quốc mà em yêu thích ( nếu mn có xem Penthouses thì tả một diễn viên trong đó thì càng tốt ạ )

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2. Một vật chuyển động thẳng nhanh dần đều với gia tốc a từ trạng thái đứng yên và đi được quãng đường s = 100 m trong thời gian t = 10 s. a) Tính thời gian vật đi hết 1 m đầu tiên. b) Tính thời gian vật đi hết 1 m cuối của quãng đường s = 100m. c) Tính quãng đường vật đi được trong 6 giây đầu tiên. d) Tính quãng đường vật đi được trong giây thứ 6.

Calli Thử thách Y/c: - Trang trí đổ bóng cacthu - Tone nâu hoặc cam - Đúng luật hoidap - vẽ thêm quả bom bên cạnh (có màu) Nl: Ai dám ngày mai dậy 6h vs tui ko :>>

Giúp e vs ạ. E cảm ơn nhiều nhé!

14. When I was a student, I ______________ (not like) doing homework. A. don’t like B. didn’t liked C. didn’t like D. hasn’t liked 16. The best films are those which transcend national or ___________ barriers. A. culture B. cultural C. cultured D. culturally