Hỗn hợp X gồm propen và một anken đồng đẳng. Đốt cháy hoàn toàn 1 mol hỗn hợp X cần 4,75 mol O2. Anken còn lại trong X là

Hộ em câu 16 phần f,g,h,i với ạ

Mn giúp mik giải trang này ik ạ 👀 Hứa 5 sao vs ctlhn nhék Mik cần gấp lắm

diễn đạt các biểu thức sau bằng lời x+y ( x- y)^2 .( x+y)^2

I: Put the verbs in brackets in correct tenses. ( dùng cả 3 loại câu đk) 1/ If she had had your address, she (write) _______ to you. 2/ We lost the match. If you (play) _______ for us, we (win) _______. 3/ They would not be paid unless they (do) _______ their work well. 4/ It (be) ………..………… better if you call me 5/ The photo would have been much better if it (be) lighter in the room. ………………… 6/ He (die) if the surgeon hadn’t operated on him …………………… 7/ Please don’t disturb him if he (be) busy .… ……………………. 8/ If ice (be) heavier than water, it wouldn’t float …………………… 9/ If you had strained your ears, you (hear) a slight noise in the bushes …………………… 10/ If you had done as I talk you, you (succeed). …………………… 11/ If I followed his advice, I (be) a fool. …………………… 12/ If I (lose) my license, I shall lose my job. …………………… 13/ If he had gotten one more mark, he (pass) the exam. …………………… 14/ If I make a promise, I (keep) it. …………………… 15/ If I (have) enough money, I will buy a new skateboard. …………………… 16/ I would have been glad if he (visit) me in hospital. …………………… 17/ If they were rich, they (stay) at a hotel. …………………… 18/ If he had offered me the job, I (take) it. …………………… 19/ She will be angry if you (not, tell) the truth. …………………… 20/ If Jack (come) to my party, I would have danced with him. …………………… 21/ If he (drive) more carefully, he would not cause an accident. …………………… 22/ The Millers (move) to the seaside if they had had children. …………………… 23/ If they take their medicine, they (feel) better. …………………… 24/ If you had asked me, I (tell) you. …………………… 25/ We (not, get) good marks if we don’t learn hard. …………………… 26/ They would be glad if the rain (stop) soon. …………………… 27/ If he (not, go) back now, he will be late. …………………… 28/ If we had gone to London, we (see) the Tower ……………………

3.After the operation, you may find it difficult to ____________ and ______________ a. chew / digest b. chew / swallow c. digest / swallow d. taste / chew 4.He has a very good ________________ in music. a. taste b. type c. smell d. feeling 5.HE ____________ the brush into paint a. did b. dipped c. kept d. broke 6.. __________ what life would be like without music. a. image b. imagine c. imaginary d. imagination 7.He paused , waiting for her to ___________ the information. a. think b. know c. digest d. mention 8.Are you in Paris on business or ______________? a. Please b. pleasure c. pleased d. pleasant 9.Food should be well cooked to suit all the guests’_____________ a. eyes b. smell c. taste d. tongue 10.The thriller was so exciting that I couldn’t ________ a. drop it b. pick it up c. put it down d. read it 11.He doesn’t like a woman who is beautiful but has no ____________ a. qualify b. person c. personnel d. personality 12.I couldn’t __________ my anger so I gave him a slap on his face. a. eat b. swallow c. drink d. chew 13.Error Identification : .Professor Tony Brown is respected by his students for his perfectly knowledge. a. is respected b. his students c. for d. perfectly 14.The reporters are interviewing those who ____________ from the disaster. a. ran away b. survived c. lived d. escaped 15.On Christmas Day all members of our family usually __________ at my parents’ had have a big party together. a. reunion b. reunification c. reunite d. reunites 16.Books in the home are the wonderful ____________ of knowledge and pleasure. a. supply b. origin c. source d. provision 17.Reviewer often ___________ books as “ hard to put down” or “ hard to pick up again.” a. describe b. illustrates c. classify d. choose 18.If you enjoy reading stories about love affairs, a _____________ is the right one. a. love b. novel c. romance d. romantic 19.Have you got any books on business methods or any similar ______________? a. subject b. content c. author d. mater 20.How are the books in this library ______________? a. divided b. named c. gathered d. classified 21.Robert’s new book will be ____________ in August? a. typed b. published c. broadcast d. announced 22.I’m reading a Stephen King’s novel. It’s really exciting and I couldn’t _____________ a. get it off b. put it down c. take it on d. look it up 23.Reviewers describe books ____________ “ hard to put down or hard to pick up again” a. as b. for c. into d. in 24.Books are still a cheap _____________ to get knowledge and entertainment. a. means b. way c. method d. measure 25.I ________ this book to all who enjoy an exciting story. a. praise b. approve of c. compliment d. recommend 26.Our son is very _________ on detective books. a. interested b. keen c. fond d. concerned 27.Grandmum used to ___________ us for hours with her stories and jokes. a. entertains b. entertained c. entertainment d. entertain 28.Error Identification : His books have been translated into several language in the world. a. his b. have been translated c. language d. in 29.Taking soup is easy and fast; just put it in your mouth and _____. a. chew b. taste c. swallow d. digest 30.It gives her great _____ to work with these young children. a. time b. pleasure c. taste d. happy 31.You’re ill; you shouldn’t eat meat. Fish is easy to _____. a. digest b. chew c. swallow d. taste 32.He found it difficult to _____ food with a loose tooth. a. swallow b. taste c. chew d. digest 33.He only had time to ___ into the report before going to the meeting. a. see b. dip c. break d. read 34.It was such a great book that I couldn’t put it _____. a. on b. off c. out d. down 35.She’s busy writing a book _____ astrology. a. in b. of c. on d. about 36.Fiction is a type of literature that describes ___ people and events. a. imaginary b. real c. historic d. important 37.A(n) _____ is a book that someone write about their own life. a. romance b. biography c. historical novel d. autobiography 38.Victorian writers fired the popular __ with their tales of adventure. a. imagination b. image c. imaginings d. imaginary 39.Books that give facts about real events, things, or people are called_____. a. non-fiction b. novel c. biography d. romance 40.Skimming is sometimes useful _____ processing larger quantities of text. a. for b. in c. to d. of 41.Professor Moore recommended the book _____ all his students. a. with b. to c. for d. from 42.A: _______________________. B: I start at nine and finish at four. A. What time do you work? B. What are your working hours? C. How long do you work? D. When do you start and finish working

Bài 4: . Cho tam giác ABC có AB = 6cm, AC = 8cm, BC = 10cm. a) Tam giác ABC là tam giác gì? Vì sao? b) So sánh ba góc của tam giác ABC

sau khi nghe báo tin có bọn trộm gỗ các chú công an dặn dò em cách phối hợp với các chú để bắt bọn trộm thu lại gỗ vị ngữ trong câu này

ai giúp em làm câu 3 nha em không biết làm ,ghi cách làm thôi nha ;) em sẽ vote 5 sao ,cho anh chị nào giúp em ghi cách làm câu 3 nha

Trên đường tròn lượng giác , nghiệm của phương trình sin2x.cosx=0 được biểu diễn ở mấy điểm