Cho 1 kim loại hoá trị I phản ứng hoàn toàn với 3,36 lít khí O2 thu được 18,6 gam một oxit. Tìm tên kim loại

Nhận biết các chất sau : propin, metan, etilen

Giải nhanh giùm e gấp đc k e còn 30p

từ ''mặt trời '' trong câu thơ '' thấy một mặt trời trong lăng rất đỏ '' ( bài viếng lăng bác - viễn phương ) có thể coi là hiện tượng 1 nghĩa gốc của từ phát triển thành nhiều nghĩa được không ? vì sao ?

1. Choose the word which is stressed differently from the rest * A. musical B. physical C. medical D. botanical 2. Choose the word which is stressed differently from the rest * A. dramatic B. Vietnamese C. refugee D. Japanese 3. If it (rain) _____________, I will stay at home. * A. is raining B. will rain C. rained D. rains 4. Hawaii and Alaska (be) ________ US states since 1959. * A. are B. were C. have been D. will be 5. If I were you, I (wash)___________ the dishes by hand to save water. * A. will wash B. wash C. would wash D. washed 6. Wilson (help) _________ his mother in the garden if she shows him how to do. * A. helped B. will help C. helps D. would help 7. If he (not work)_______ near the construction site every day, he wouldn't have bad headache. * A. doesn't work B. didn't work C. wouldn't work D. won't work 8. Three hundred fifty thousand people (travel) ______________ each day into London to work. * A. travel B. are traveling C. have traveled D. have been travelling 9. The last train of the day (leave) __________ at 23:40. * A. has left B. left C. leaves D. is leaving 10. If tourist ________rubbish in the river, the water would be cleaner now. * A. don't throw B. throw C. didn't throw D. threw 11. If I ______you, I ______ try to save water. A. were / would B. am / would C. were / will D. am / will 12. I ___________breakfast right now. Can you call a little later? * A. am cooking B. cook C. have cooked D. cooked 13. The flight _________ off at 19:10, so we need to hurry up. * A. is going to take B. takes C. will take D. took 14. The Music Festival __________ place this Sunday night, in the central Stadium. * A. took B. will take C. takes D. is going to take 15. England (be) ………………one part of the United Kingdom. * A. has been B. is C. will be D. are 16. Reorder the words or phrases to make complete sentence: * at the beaches / swim / you / ill / will / with polluted water / if / you / be A. If you swim at the beaches with polluted water, you will be ill. B. You will be ill if you swim at the beaches with polluted water. C. If you will swim at the beaches with polluted water, you be ill. D. A & B are correct. 17. Combine two sentences, using the word given: People eat dirty food. They can be cancer. (IF) * A. People eat dirty food if they can be cancer. B. If people eat dirty food. They can be cancer. C. If people will eat dirty food, they can be cancer. D. If people eat dirty food, they can be cancer. 18.Make the sentence with the cues given She / not / study / French / for teen years A. She does not study French for ten years. B. She is not studying French for ten years. C. She will not study French for ten years. D. She has not studied French for ten years. 19. Make the sentence with the cues given * In Sweden / people / celebrate / Easter the end / winter A. In Sweden, people have celebrated Easter at the end of the winter. B. In Sweden, people celebrate Easter at the end of the winter. C. In Sweden, people celebrate Easter for the end of the winter. D. In Sweden, people celebrate Easter since the end of the winter. 20. Complete the sentence with the suitable form of the word provided * The between _______ Vietnam and America is good (friend) A. friendship B. friendly C. friend D. friendliness

help me mai nộp r( hứa vote 5 sao nha)

Mọi người giúp em câu b với ạ :(((

Giải hộ mik nhé Mik sẽ cho 5 sao

Giải giúp em phương trình tích (3x-2) (4x-5)=0

Làm hộ mik ạ xin 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏😅😅😅😅😅😅😅😅😅😅😅