hòa tan hoàn toàn 5,6gam Fe bằng một lượng vừa đủ dung dịch HCl 0,1M .Sau phản ứng thu được dung dịch X và thoát ra V lít khí H2 (đktc) a)tính giá trị của V b)tính thể tích dung dịch HCl cần dùng các bạn giúp mình vs

Fill in the words from the box. Use the present progressive.                    play - work - sit - read - play - listen - clean – read                   Debbie and her friends _________________in Debbie’s garden. They ________________ football. Mrs. Baker _________________a book. Mr. Baker _________________in the garden. Nick ______________ to his favourite CD. The cats _________________on Mrs. Baker's chair. Bill _________________his bike. Bill: "Debbie, help me, please." But Debbie doesn't have any time: "I _________________a book for school. Ask your friend." 22. Fill in the words from the box. Use present progressive.                      play - listen - ride - read - act - work – clean                   Sally and her friends _________________ in the garden.  They _________________ for a video. Her mother _________________ a book. Her father _________________ in the garden. Dave _________________ to music on his iPad. Her brothers, Ben and Frank, _________________ their bikes. Ben ‘s friend ________________ his bike.

27. Nam football now. He's tired.. A. doesn’t play B. plays C. is playing D. isn’t playing 28. Listen! Someone at the door. A. knocks B. knock C. is knocking D. are knocking 29. My brother and I our bicycles to school now. A. ride B. am riding C. are riding D. is riding 30. Mr. Khang our class Maths. A. teach B. teaches C. does D. starts nhanh nhé 5p xong nha. ko cần giải thích đâu

Yêu cầu: Lập bảng so sánh CMTS Hà Lan và CMTS Anh theo nội dung hướng dẫn sau CMTS Hà Lan CMTS Anh Thời gian Nguyên nhân Nhiệm vụ Lãnh đạo Lực lượng Hình thức Kết quả Ý nghĩa

Cho bốn hàm số y= sinx , y= cosx , y=tanx , y= cotx . Số hàm số nghịch biến trên khoảng (-π/2 ; -π/4 )

Ai giúp mình giải 2 bài này với mình đang cần gấp 🙏

Câu 17: nguyên tử của một nguyên tố Y được cấu tạo bởi 36 hạt . Trong hạt nhân, hạt mang điện bằng số hạt không mang điện. 1, Số đơn vị điện tích của hạt nhân Z 2, Số khối A của hạt nhân

2018 x 2021 - 2021 x 2017 Tính diện tính tam giác ADE Biết diện tích hình vuông là 36cm2

II. Choose the correct answers. 11. Phong is wearing a school . A. shoes B. uniform C. bag D. hats 12. I am having a Maths lesson but I forgot my . I have some difficulty. A. calculator B. bicycle C. pencil case D. pencil sharpener 13. In Physics, we have a lot of . A. books - to have B. homework - to do C. science - to study D. vocabulary - to play 14. morning exercise is good for you. A. Doing B. Studying C. Playing D. Having 15. At lunchtime, you can lunch in the school canteen. A. go B. be C. have D. do 16. Mai and Hoa their bicycles to school from Monday to Friday. A. rides B. ride C. is riding D. are riding 17. Nam's new school a large . A. has - playground B. have - playgrounds C. is having - playgrounds D. are having - playground 18. I often my homework school. A. study - at B. am doing - after C. do - after D. does - before 19. In the afternoon, I books the library. A. am reading - at B. read - in C. reads - at D. are reading - in 20. Look! They badminton with their friends. A. play B. plays C. playing D. are playing 21. What is your subject at school? A. nice B. favourite C. liking D. excited 22. Students live and study in a/an school. They only go home at weekends.. A. international B. small C. boarding D. overseas 23. In the afternoon, students many interesting clubs. A. join B. do C. play D. have 24. Creative students drawings and paintings in the club. A. do - sport B. join - English C. do -art D. play - judo 25. We are excited the first day of school. A. at B. about C. with D. in 26. My parents often help me my homework. A. with B. about C. at D. in 27. Nam football now. He's tired.. A. doesn’t play B. plays C. is playing D. isn’t playing 28. Listen! Someone at the door. A. knocks B. knock C. is knocking D. are knocking 29. My brother and I our bicycles to school now. A. ride B. am riding C. are riding D. is riding 30. Mr. Khang our class Maths. A. teach B. teaches C. does D. starts nhanh nhé 5p xong nha. ko cần giải thích đâu

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