Cho 18 gam dung dịch glucozơ 20% hoàn tan vừa hết m gam Cu(OH)2, tạo thành dung dịch màu xanh thẫm. Giá trị của m là

Vẽ mầm Nl: Cho mik hỏi cái bạn hôm qua nói là nếu Việt Nam thắng UAE thì hỏi sương sương 20 câu hỏi, giờ bạn ấy đâu rồi :)))))

Identify the word whose main stress is different from that of the other three. 1. A. nation B. comfort C. apply D. moment 2. A. attraction B. afternoon C. pyramid D. century 3. A. machine B. forecast C. program D. jungle 4. A. collect B. packet C. borrow D. country 5. A.character B. popular C. wonderful D. computer

Viết 1 đoạn văn ngắn về 1 loại quả mà em thích

Supply the correct word form to complete the following sentences. 1. Graham Bell was a famous …………… INVENT 1 2. Playing soccer is one of my favorite………….. ACT 2 3. Environmental ………is everybody’s responsibility. PROTECT 3 4. We can see many ………………on TV everyday. ADVERTISE 4 5. Thanhs anyway, but it was ……… news. VALUE 5

1) biết khi nhiệt độ tăng từ 20 độ C đến 60 độ C thì 1 lít nước nở thêm 10,4cm3 . Hỏi 5000 cm3 nước ban đầu ở 20 độ C khi đun nóng đến 60 độ C thì sẽ có thể tích là bao nhiêu A 5052 centimet khối. B 52 centimet khối. C50520 centimet khối. D505,2 centimet khối. 2)Nhiệt độ 40ºC trong nhiệt giai Xen – xi - ut tương ứng với nhiệt độ nào trong nhiệt giai Fa – ren - hai? * 104ºF. 129,6ºF. 140ºF. 72ºF.

Choose the best answer from A, B, C or D to complete each of the following sentences. 1. The man told me ………………to go to the post office. A. what will B. how can I C. how D. how I can 2. Remote controls are used to …………………..with TV. A. connect B. relate C. interact D. show 3. She looks …………………… today. A. nervous and anxiously C. nervous and anxious B. being nervous and anxious D. nervously and anxiously 4. He hates…………………..to do something by others. A. being to ask B. asking C. being asked. D. to ask. 5. I’ve ………………….to Paris. I went there in March. A. gone B. been C. just D. yet 6. Who is your best friend? – The girl……………………on the stage. A. sings B. to sing C. singing D. will sing 7. – “Would you mind ………………………..next to you ?” Not at all. A. if I sit B. to sit C. sitting D. if I sat 8. What are you going to do? – I don’t know. I haven’t made…………………..my mind yet. A. on B. at C. in D. up 9. Hurry up,…………………you will be too late for school. A. if B. but C. or D. and 10. Deaf-mutes can ………………….speak …………………. hear. A. both … and B. neither …nor C. not only … but also D. either … or

Để có thể phân biệt các lọ mất nhãn chứa etyl axetat và axit axetic, không thể dùng: A. CaCO3 B. quỳ tím C. Na2CO3 D. dd Br2 lý giải cho mik luôn nha iu :v

IV. Hãy chọn đáp án đúng A, B, C, hoặc D để hoàn thành những câu sau đây. 1. She usually has_____________ at 7 p.m. A. Dinner B. lunch C. breakfast D. supper 2. Nine fifteen is ________________ . A. a quarter past nine B. a nine past quarter C. a nine to quarter D. a quarter to nine 3. Jane enjoys listening____________ music every morning. A. At B. to C. by D. on 4. Nam is smaller than me but Long is________________ . A. the smaller B. small too C. the smallest D. smaller than 5. It is about 3 kilometers my house __________ my school. A. from/to B. to/from C. at/to D. to/at 6. Mrs Hoa_____________ to work by motorbike every day. A. Comes B. goes C. arrives D. runs 7. He would like some bread. He’s____________ . A. Happy B. hungry C. thirsty D. good 8. My mother______________ to me every month when I was in London. A. Writes B. wrote C. is writing D. write 9.__________ does she go on holiday? She goes by train. A. Which B. What C. How D. Where 10. We are going to go________________ this Sunday afternoon. We like water very much. A. Running B. swimming C. skiing D. skating

Giúp mình câu 7, câu 9 nha cảm ơn mấy bạn :3