Cho 6,9g một nguyên tố nhóm IA tác dụng hoàn toàn với nước thu được dung dịch X. Để trung hoà dung dịch X cần 500ml dung dịch HCl 0,6M. Xác định nguyên tố đó

Vì mai em phải nộp nên mọi người có thể giải sớm hộ em không =( pls

Viết 1 bài văn tả cảnh buổi sáng ở quê hương em trong đó có sử dụng phép so sánh. Lưu í: ko spam

1 hình thang có trung bình cộng hai đáy là 9dm,chiều cao là 5dm.tính diện tích của hình thang đó là:giải thích ra nha A.7dm2 B.14dm2. C.45dm2. D.90dm2 Làm nhanh giúp mk

Bài này e chx hỉu lắm m.n jup e nka

giúp mình với mình đang cần gấp để nộp cô

Viết đoạn văn tả cảnh mùa đông đến Mình sẽ vote 5 sao, cảm ơn và chọn tlhn

a) Viết PTHH khi cho K,BaO,SO3 tác dụng với nước b) sản phẩm của phản ứng là gì? Cho quỳ tím vào sp tạo thành, màu của quỳ tím sẽ biến đổi ntn?

6. ____________ books have you read this week? – “Only one” A. How much B. How often C. How many 7. Peter’s brother is living in Singapore, so he ___________ there many times. A. have been B. has been C. was 8. Exercising is good for us but____________ train too hard. A. do B. please C. don’t 9. ___________ city in the world is Tokyo. People need a lot of money to live there. A. More expensive B. The most expensive C. Expensive 10. John: Last week I took part in a tennis competition and I won the first prize. Marry:___________ A. Sorry B. It’s Ok C. Congratulation 11. Tom: Why don’t you go with us to the movies theater tonight? Peter:____________ A. That’s a good idea! B. That’s right C. No, thank you. 12. We can go to the pool _________ we can go horse-riding, whichever you prefer? A.or B. but C. and 13. Game shows are _________ programmes. They can be both entertaining and educational. A. more exciting B. most exciting C. the most exciting 14. My friend Mark is very good ________ volleyball. He plays volleyball very well. A. in B. on C. at 15. Football is an example of a ________ sport where you play with several other people. A.team B.individual C.indoor 16. Have you ever ___________ aerobics? Aerobic exercise can help you to lose weight. A. played B.done C.gone 1. The last time I saw him was in 2010. (seen)  I haven’t ___________________________________________________________ 2. They moved to New York in 2004. (lived)  They have _____________________________________________________________ 3. No other tower in England is as famous as Big Ben. (the)  Big Ben is the ___________________________________________________________ 4. Nathan missed the bus. He was late for school. (because)  Nathan missed the bus _________________________________________________ 5. You can watch TV now. You do not spend too much time on it. (but) ____________________________________________________________________ 6. Nam likes cartoons most. → Nam’s favourite ____________________________________________________ 7. I am interested in the history of television, so I’ve read a lot of books about it → Because…………………………………………………………………… 8. We didn’t win the game, but we had a lot of fun. → We had a lot of fun …………………………………………………………….. the game. 9. Nowhere is more comfortable than my house. → My house is …………………………………………………………………….. place. 10. My brother speaks English well. → My brother is ……………………………………………………………………………..

Mn cố gắng giúp tớ vs ạ cảm ơn rất nhiều