Hoà tan m gam NaOH trong nước thu được 200ml dung dịch NaOH 2M.Tính m

phát biểu cảm nghĩ về một bài thơ hoặc tác phẩm văn học trong lớp 9 mà em yêu thích

một hôn hợp khí A gồm 0,8mol O2 o,2 mol CO2 và 2mol CH4. tìm khối lượng của hóa học A

giai va giải thích hộ e vs ạ 1This wine ______ in the cellar for 15 years. When we take it out and open it, it will taste beautiful! A. was B. has been C. have been D. is 2I have never felt happier than I do now. A. I felt happier before. B. I feel happy now. C. I have never felt happy. D. I have always felt happy. 3. I / see / friend / you / moments / ago A. I see a friend of yours a few moments ago. B. I saw a friend of yours a few moments ago. C. I have seen a friend of yours a few moments ago. D. I saw a friend of you a few moments ago. 4. This / be / first time / I / be / a plane. A. This is the first time I am on a plane. B. This is the first time I will be on a plane. C. This is the first time I have been on a plane. D. This is the first time I was on a plane 5It _______ a long time since I last _______ to my pen pal. A. is – have written B. has been – wrote C. is – wrote D. has been – write 6Several students have tried to solve the quiz, but no solution _______. A. has found B. was found C. found D. has been found

Tìm m để $5x^{2}+10x+m=0$ vô nghiệm

Tứ giác ABCD có AB = BC và AC là tia phân giác của góc A. Chứng minh rằng ABCD là hình thang.

Cali: Dạ Tinh Lâu Nền màu xanh da trời nhạt , chữ màu xanh lá cây tạo thêm chút màu vàng cho nổi lên chữ Đừng để màu sắc nổi hơn màu chữ Cute chút Ngộ nghĩnh dễ thương , có stickers hình mây và ngôi sao( làm bằng app nhé) ai đẹp nhất mk sẽ vote 5 sao

1. Sue went shopping to buy herself a new dress. (so that) - Sue went shopping ___________________________________________________________ 2. Harry left early because he didn’t want to miss the bus. (so as) - Harry left early ______________________________________the bus. 3. Despite the cold weather, we all went for a walk. (Although) - Although ___________________________________, we all went for a walk. 4. On arriving at an airport, I usually go straight to the check-in desk. (soon) - I usually go straight to the check-in desk as ___________________________to an airport. 5. You can borrow my book provided that you return it next week. (long) - You can borrow my book _________________________________it back to me next week. 6. Although we regret the closure, there is no other alternative. - Much _________________________________________, there is no alternative. 7. You don't have to pay now if you would rather not. (prefer) - You are under ____________________________________________________________ not to. 8. When I make my complaint, I hope that you will say you agree with me. (back) - When I make my complaint, I hope __________________________________________________.

Dùng các từ dưới đây để đặt câu ( một câu theo nghĩa gốc, một câu theo nghĩa chuyển ) : nhà, đi, ngọt.

giúp em với ạ: Viết đoạn văn trả lời 2 câu hỏi này bằng tiếng anh what can you deal with conflic in your family? what can you change you attituele ?