Làm gấp giúp em với ạ em cảm ơn nhìu bài 7 ạ

C1: Tổng số hạt proton, notron, electron của nguyên tử một nguyên tố là 21. Cấu hình electron của nguyên tố là: A. 1s2 2s2 2p4 B. 1s2 2s2 2p3 C. 1s1 2s2 2p3 D. 1s2 2s1 2p3 C2: Ngtử Y có 12 nơtron và có số hạt mang điện chiếm 2/3 tổng số hạt. Số hiệu ngtử của Y là: A. 12 B. 18 C. 24 D. 8

Chỉ câu 4 nha cảm ơn mội người nha

A=1+2+2^2+2^3+...+2^99 Tìm chữ số tận cùng của A

16. In order to have good , you should eat lightly and laugh cheerfully. A. spirit B. body C. health D. mood 17. Do you believe that eating carrots helps you see at night? A. most B. the most C. much more D. less 18. We should try to keep everything around us clean and then flu will find it to spread. A. difficultly B. difficulties C. difficult D. difficulty 19. My father does morning every day. A. running B. well C. exercise D. weak 20. We should play sports or do exercise in order to stay in . A. fit B. health C. look D. shape 21. You can avoid some diseases by yourself clean. A. keeping B. taking C. looking D. bringing 22. The Japanese eat a lot of fish instead of meat they stay more healthy. A. but B. because C. although D. so 23. She looks tired. What’s the ……….. with her? A. matter B. happen C. wrong D. right 24. Minh is absent from class today ……….. he is ill. A. but B. because C. when D. so 25. He is a(n) ______. He doesn't have a habit of eating meat. A. patient B. expert C. vegetarian D. adult 26. She usually eats some sweet cakes before going to sleep, so she may put____ weight if she continues to do that. A. in B. up C. on D. into 27. Watching too much television is not good you or your eyes. A. with B. to C. at D. for 28. When you have flu, you may have a cough and a nose. A. runny B. running C. flowing D. noisy 29. When you have a temperature, you should drink more water and rest . A. most B. more C. most D. less 30. I forgot to wear a sun hat today and I got a . A. stomachache B. earache C. backache D. headache

Giúp mình câu b bài 6 vs ạ. Gấppp

Xác định a, b biết : (x+a) (x+5)=x ² +3x+b

Viết đoạn văn ngắn : Work in pairs. Interview your partner to find out what he/ she likes/ doesn't like about the life of the nomads.

I. Choose the best answer to complete each of the following sentences 1. You should eat a lot of fruits and vegetables because they vitamin A, which is good for the eyes. A. run B. take C. provide D. get 2. The health from that diet expert is that you should eat less junk food and count your calories if you are becoming fat. A. advices B. ideas C. tip D. tips 3. The seafood I ate this morning makes me feel all over. A. itchy B. weak C. running D. well 4. If you want to be fit, stay outdoors more and do more activities. A. physics B. physic C. physical D. physically 5. Do more exercise eat more fruit and vegetables. A. and B. so C. but D. although 6. After working in computer for long hours, you should your eyes and relax. A. wake B. rest C. sleep D. sleep in 7. Eat less high-fat foods to keep you from fat. A. gaining B. reducing C. getting D. rising 8. We should follow the advice from doctors and health in order to keep fit. A. managers B. experts C. people D. workers 9. Have a healthy and you can enjoy your life. A. lifeline B. lively C. lives D. lifestyle 10. They go outside even when it’s cold. A. swims B. swiming C. swimming D. swam 11. Rob eats a lot of fast food and he on a lot of weight. A. spends B. brings C. takes D. puts 12. We need to spend less time computer games. A. playing B. to playing C. play D. to play 13. To prevent , you should eat a lot of garlic and keep your body warm. A. cold B. mumps C. flu D. headache 14. Be careful with you eat and drink. A. who B. this C. what D. that 15. Eating a lot of junk food may lead to your . A. pain B. stomachache C. obesity D. fitness

Em hãy viết 1 bức thư để tham gia cuộc thi viết thư cho Liên minh Bưu chính Quốc tế (UPU) tổ chức với đề tài: Thư cho 1 người bạn về việc phòng chống Covid 19. Làm ơn hãy giúp mình với ạ!🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻Cảm ơn mọi người rất rất nhiều ạ!!!!(┬┬﹏┬┬)