Viết phương trình phản ứng khi cho các đồng phân của C2H4O2 (thuộc các loại hợp chất đã học) tác dụng với Na, NaOH, CuO, CaCO3.

VII. Make questions for underlined words or phrases. 11. My father is working in the garden. 12. She can play basketball 13.Mr. Ba often loads the truck with vegetable 14. Lan usually waits for Mai’s friend after school. VIII. Correct the mistakes in the following sentences. 1. Are you free in Saturday afternoon? 2. There is some oranges and some apples in the box. 3. Tony has two brothers and he hasn't a sister. 4. Their son can swims very well. 5. Tom is planting trees. Let's to help them. 6. Please. Closing the window. Hứa cảm ơn, vote 5* và ctlhn ạ!

Giúp mk vs .mk đang cần gấp. Thanks

GTNN của hàm số y = 3x + $\frac{4}{x²}$ trên khoảng (0;+∞) ( cho hỏi thêm bài này có cần chọn điểm rơi ko ạ)

Có 5 ống nghiệm không nhãn, đựng các dung dịch không màu: KOH, Al(NO3)3, Mg(NO3)2, Ba(NO3)2, NH4NO3. Không dùng thêm chất khác, bằng cách nào có thể nhận ra mỗi chất đó.

COMBNIE THESE PAIRS OF SENTENCES, USING RELATIVE PRONOUNS OR ADVERB a. Lan is my classmate .She lives near my grandparents'house. . b.The young man is talking gto our teacher . He is Ba's brother. c.We visited the monument .lt was built a hundred years ago. d.The victims ofthe flood need help . They were half-sterved for many days. e. The baby was still alive , He was lifted and put down a hundred meters away by atornado. f.The weathr forecast program takes place at 8 p.m everyday.Some people like to watch it. g.Hoa's parents buy a lotof candles and food . They will use them in casethe market is closed because of the hurricane. h.Mr Phong isour geography teacher . He has been teaching in our school for ten years. GIÚP MÌNH VS Ạ HỨA VOTE 5 SAO TLHN Ạ

Calli: phét NL: lớn rồi, bốc phét ít thôi Xạo vừa thôi chi ạ, dòng đầu í

Hộ mik vs ạ mik đang cần gấp 9:00 là nộp r ạ

̀5 My brother's daughter is 6 My wife's parents are my is my brother- in-law giúp mình giải 2 câu này vs mn mình cảm ơn rất nhiều

Giúp e bài này vs ak .e đang cần gấp. E cảm ơn