nhanh giúp mk nha, mk đang cần gấp

làm giúp ạ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Dạng 1: Xác định công thức phân tử, công thức cấu tạo Hai este đơn chức X và Y là đồng phân của nhau. Khi hoá hơi 0,74 gam X, thu được thể tích hơi đúng bằng thể tích của 0,32 gam O2 (đo ở cùng điều kiện). Công thức phân tử, CT cấu tạo thu gọn của X và Y là Dạng 3 : Đốt cháy este Khi đốt cháy hoàn toàn các este no, đơn chức, mạch hở và cho sản phẩm cháy vào bình đựng dung dịch Ca(OH)2 dư thấy khối lượng dung dịch giảm 58,9 gam. Khối lượng kết tủa là

I . Chia động từ (nhớ giải thích nhé !) 1. My father (call) __________you in 6 minutes. 2. When Kane (come) ________ tonight, we(play) __________ BIA together. 3. I promise I (return) __________ school on time. 4. Daisy(sit) __________ on the train at 8.30am tomorrow. 5. If it not rains, he (play) __________ football. 6. He(play) ____ _____with his son at 8 o’clock tonight. 7. You (take) ____will be taking_____ me to the park this weekend? 8. My parents(visit) __________Japan at this time next week 9. I think he (not come) _________ back his hometown. 10. He(work) __________at this moment tomorrow. II . Daisy: Just think, next month at this time, I (lie)__________ on a tropical beach in Maui drinking Mai Tais and eating pineapple. Jane: While you are luxuriating on the beach, I (stress)____ out over this marketing project. How are you going to enjoy yourself knowing that I am working so hard? Daisy: I’ll manage somehow. Jane: You’re terrible. Can’t you take me with you? Daisy: No. But I (send)_________ you a postcard of a beautiful, white sand beach. Jane: Great, that (make)__________ me feel much better. IV: Complete this email with either the past simple or the past continuous form of the verbs in brackets. Where alternatives are possible, think about any difference in meaning. I (1. buy) _________ a new alarm clock the other day in Taylor’s the jewellers, when I actually (2. see) ___________ somebody shoplifting. I’d finished paying for my clock and as I (3. turn) ________ round, an elderly woman (4. slowly put) ___________ a silver plate into a bag that she (5. carry) __________. Then she (6. walk) _________ over to another part of the shop and (7. pick up) ___________ an expensive-looking watch a number of times. When she (8. think) _________ that nobody (9. look) ____________, she (10. drop) ____________ it into the bag. Before I (11. have) ____________ a chance to tell the staff in the shop, she (12. notice) ____________ that I (13. watch) ____________ her and (14. hurry)____________ out. Unfortunately for her, two police officers (15. walk) ____________ past just at that moment and she (16. run) ____________ straight into them. VI: Supply the correct tenses of the verbs in brackets One afternoon, a big wolf (wait) ____________ in a dark forest for a little girl to come along carrying a basket of food to her grandmother. Finally a little girl did come along and she (carry) ____________ a basket of food. 'Are you carrying that basket to your grandmother?' asked the wolf. The little girl said yes, she (be)____________. So the wolf (ask) ____________her where her grandmother lived and the little girl (tell)____________ him and he (disappear)____________ into the wood. When the little girl (open) ____________ the door of her grandmother's house, she (see)____________ that there was somebody in bed with a nightcap and nightgown on. She (approach)____________ no nearer than twenty-five feet from the bed when she (see)____________ that it was not her grandmother but the wolf , for even in a nightcap a wolf does not look like anybody's grandmother. So the little girl (take) ____________ an automatic pistol out of her basket and (shoot) ____________the wolf dead.

Giúp mình với nhé!!! Thank các bạn ;-;

help e nhanh vs ạ plss đó .Lm đầy đủ ko lm tắt ạ

Alo ạ? Ai giúp mình với:^ mik đag cần gấp ಥ╭╮ಥ

với mọi n là số nguyên lẻ.chứng minh rằng:B=n³+3n+2412 chia hết cho 8

nhanh giúp mk nha, mk đang cần gấp

rút gọn biểu thức 2x^2+4y^2+5y^2-2x^2+12xy