-xác định số hạt p,e,n dựa vào S: Nguyên tử R có tổng số hạt là 40, trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 12. Tìm số hạt p,e,n

Có ai giúp mình không ạ? Mình cần trước 10h, mình sẽ vote 5 sao

helppps meeeee, thanks you very!!!!

Ex 1. Use the past simple to complete these sentences 1. Yesterday, I (go)______ to the restaurant with a client. 2. We (drive) ______ around the parking lot for 20 mins to find a parking space. 3. When we (arrive) ______ at the restaurant, the place (be) ______ full. 4. The waitress (ask) ______ us if we ______(have) reservations. 5. I _____(say), "No, my secretary forgets to make them." 6. The waitress (tell)______ us to come back in two hours. 7. My client and I slowly (walk) ______ back to the car. 8. Then we (see) ______ a small grocery store. 9. We______ (stop) in the grocery store and (buy) ______ some sandwiches. 10. That (be) ______ better than waiting for two hours. 1. It was warm, so I ….. off my coat. (take). 2. The film wasn't very goor. I …… it very much. (enjoy) 3. I knew Sarah was very busy, so I ..... her (disturb) 4. I was very tired, so I ..... the party early. (leave) 5. The bed was very uncomfortable. I ..... very well (sleep) 6. The window was open and a bird ..... into the room (fly) 7. The hotel wasn't very expensive. It ..... very much (cost) 8. I was in a hurry, so I ..... time to phone you (have). 9. It was hard carrying the bags. They ..... very heavy. (be) 10. I thought that It would be awful, but finally It ……. (turn) out to be great!

Write full sentence using the suggested words/phrase provided. 15.What housework/your sister/do/the morning? ............................................................. 16.Mary/sister/two sons. .............................................................

Con sinh ra có đứa mắt nâu , có đứa mắt đen / viết sơ đồ lai ( giúp e với cần gấp ạ ) hứa vote 5 sao + câu tl hay nhất

cho đồ thị f(x). Hỏi phương trình |f(x)|= π có mấy nghiệm

câu 1 khu vực Đông Nam Á ngày nay gồm những nước nào? các nước này có điểm gì chung về điều kiện tự nhiên

Một xe moto đang chuyển động thẳng đều trên đường với tốc độ góc ô mê ga bằng 4π (rad/s) bt đường kính của vành bánh xe là 70cm tìm quảng đường xe đi được sau 2p

PART A: Use the correct present tenses of verbs 1. She ………….. (not/study) now, she ………….. (watch) TV. 2. I ………….. (not/work) on Sundays. 3. What ………….. (Susie/do) tomorrow? 4. What ………….. (you/eat) at the moment? 5. The class ………….. (begin) at nine every day. 6. He often ………….. (come) over for dinner. 7. I ………….. (stay) in Spain for 2 weeks this summer. 8. She ………….. (have) 2 daughters. 9. What ………….. (we/have) for dinner tonight? 10. Julie ………….. (read) in the garden. 11. They ……………… (arrive) already? 12. Lucy ……………… (run) 2000 meters today. 13. I ……………… (clean) all morning – I’m fed up! 14. How long ……………… (you/know) Simon? 15. I ……………… (drink) more water recently, and I feel better. 16. Sorry about the mess! I ……………… (bake) 17. How many times ……………… (you/take) this exam? 18. He ……………… (eat) six bars of chocolate today. 19. Julie ……………… (cook) dinner. Let’s go and eat! 20. The students ……………… (finish) their exams. They are very happy