TD7: Đốt cháy hỗn hợp 0,2 mol Mg ,0,3 mol Zn và 0,1 mol Al trong bình đựng 5,6 lit khí oxi ( ở đktc) . Tính khối lượng chất rắn sau phản ứng. TD9: Cho 4,2 gam kim loại M tác dụng hết với oxi thu được 5,8 gam oxit MxOy. a. Xác định công thức của oxit MxOy. b. Gọi tên oxit MxOy. TD10: Đốt cháy hoàn toàn 17 gam hỗn hợp cacbon và lưu huỳnh cần 16,8 lít khí oxi ( ở đktc). Tính thành phần % khối lượng mỗi khí trong hỗn hợp. ( giúp mik vs )

Llamf giups minh minh voi ko can gap danh gia ̀ sao

giúp minhfffffffffffffffffffffffffffffffffffff

Phân tích đa thức thành nhân tử x(y-x)^3 - y(x-y)^2 + xy(x-y) Nhanh Nhanh với ạ

Mỗi ng giúp mình 1-2 bài với ạ.Cảm ơn mng nhìuu

EX11: Chọn đáp án đúng 1: You don’t expect me.........that you actually met John, do you? A. believe B. believed C. to believe D. to believe 2: Mary agreed ......... to the circus with Ann. A. went B. to go C. going D. goes 3: My doctor doesn’t permit me..........red meat. A. to eat B. eating C. ate D. eat 4: If you decide……your car, let me........ A. sell/know B. selling/to know C. to sell/to know D. to sell/know 5: Tom refuses ......... his address. A. give B. giving C. to give D. gave 6: Do you plan .......out or ...... at home at this weekend? A. go/ stay B. to go/ stay C. going/ stay D. to go/ staying 7: I intend ............... her what I think. A. tell B. to tell C. telling D. told 8: The biologist doesn’t allow us ......... in the laboratory. A. smoke B. to smoke C. smoking D. smoked 9: My teacher promised ............... me ..............for my next examination. A. help/ prepare B. to help/ prepare C. helping/ to prepare D. helped/ preparing 10: Can someone .........me how ......... into film from the camera’s pictures? A. show/ change B. to show/ to change C. showing/ change D. show/ to change 11: We won’t let you......what we are going to do with him. A. know B. to know C. knowing D. known 12: If you want to get a better feeling for how the city is laid out, you should......downtown and......the waterfront. A. walk/ explore B. walk/ to explore C. to walk/ explore D. to walk/ to explore 13: The thing is that weddings make me ......... A. to sleep B. sleep C. to have sleeping D. be sleeping 14: Any nobody can force her .........something she doesn’t agree with. A. to have done B. to do C. do D. be doing 15: You had better ........at home until you feel better. A. be staying B. to have stayed C. to stay D. stay

Biết a//b và góc A2 =40 Tính Góc B1,B2,B3,B4.

Complete each gap with the correct form of the word in brackets. 1. Trinh Cong Son, a renowned Vietnamese _________ (COMPOSE), died at the age of 62, leaving a legacy of hundreds of love songs and songs of other genres. 2. Adam Levine, the lead singer of the band Maroon 5, has been very __________(SUCCESS) with his several chart-topping hits and gold and platinum albums. 3. I really enjoy watching Simon Cowell making comments as a judge on Britain's Got Talent and the X factor. He is one the most ________ (POWER) figures in British culture. 4. Jim cannot ever imagine living without music in his life. For him, music is not only an _______ (INSPIRE) but also a therapy. 5. Happy by Pharrell Williams has always been my favourite and given me good ________ (HOPEFUL) and energy.

S=4+7+10+13+................+2014+2017

viết lại câu sử dụng who, which, whose we are learning sentences. They contain adjective clauses