Cho hỗn hợp X gồm Ancol metylic, etylenglicol và glixerol. Cho m gam X trên tác dụng với Na dư thu được tối đa 2,24 lít H2( ở đktc). Đốt cháy hoàn toàn 2m gam X thủ được V lít khid CO2 ( đktc) . Giá trị của V là?

Những câu mình hỏi chủ yếu sẽ là về quan hệ từ, câu mở rộng câu bị động. Cảm ơn mọi người ạ! Ps: Làm hết ms đc vote ạ

Vẽ anime/chibi buồn. Ko spam, ko lấy từ mạng, ko cần tô màu.

Tính Nhanh a) 2020^3 + 1/2020^2 - 2019 b) 2020^3 - 1/ 2020^2 +2021

put the verbs in brackets into the present simple or the present continuous tense 1 Cuckoos (not build) nests. They (use) the nests of other birds. 2 You can't see Tom now: he (have) a bath. 3 He usually (drink) coffee but today he (drink) tea. 4 What she (do) in the evenings? ~ She usually (play) cards or (watch) TV. 5 I won't go out now as it (rain) and I -(not have) an umbrella. 6 The last train (leave) the station at 11.30. 7 He usually (speak) so quickly that I (not understand) him. 8 Ann (make) a dress for herself at the moment.She (make) all her own clothes. 9 Hardly anyone (wear) a hat nowadays. 10 I'm afraid I've broken one of your coffee cups.— Don't worry. I (not like) that set anyway. 11 I (wear) my sunglasses today because the sun is very strong. 12 Tom can't have the newspaper now because his aunt (read) it. 13 I'm busy at the moment. I (redecorate) the sitting room. 14 The kettle (boil) now. Shall I make the tea? 15 You (enjoy) yourself or would you like to leave now?- I (enjoy) myself very much. I (want) to stay to the end. 16 How you (get) to work as a rule? ~ I usually (go) by bus but tomorrow I (go) in Tom's car. 17 Why you (put) on your coat? ~ I (go) for a walk. You (come) with me?- Yes, I'd love to come. You (mind) if I bring my dog? 18 How much you (owe) him?- I (owe) himЈ5. ~ You (intend) to pay him? 19 You (belong) to your local library?- Yes, I do.- You (read) a lot?- Yes, quite a lot.- How often you (change) your books? — I (change) one every day. 20 Mary usually (learn) languages very quickly but she (not seem) able to learn modern Greek. 21 I always (buy) lottery tickets but I never (win) anything. 22 You (like) this necklace? I (give) it to my daughter for her birthday tomorrow. 23 I won't tell you my secret unless you (promise) not to tell anyone. - I (promise). 24 You always (write) with your left hand? 25 You (love) him?- No, I (like) him very much but I (not love) him. 26 You (dream) at night?- Yes, I always (dream) and if I (eat) too much supper I (have) nightmares. 27 The milk (smell) sour. You (keep) milk a long time? 28 These workmen are never satisfied; they always (complain). 29 We (use) this room today because the window in the other room is broken. 30 He always (say) that he will mend the window but he never (do) it. 31 You (know) why an apple (fall) down and not up? 32 You (write) to him tonight?- Yes, I always (write) to him on his birthday. You (want) to send any message? 33 Tom and MrPitt (have) a long conversation. I (wonder) what they (talk) about. 34 You (believe) all that the newspapers say?- No, I (not believe) any of it. ~ Then why you (read) newspapers? 35 This car (make) a very strange noise. You (think) it is all right?- Oh, that noise (not matter). It always (make) a noise like that. 36 The fire (smoke) horribly. I can't see across the room.- I (expect) that birds (build) a nest in the chimney.- Why you (not put) wire across the tops of your chimneys?- Tom (do) that sometimes but it (not seem) to make any difference.

So sánh a,4 và 1+ 2$\sqrt[]{2}$ b,4 và 2$\sqrt[]{6}$ - 1 c,$\sqrt[]{0,5}$ và $\sqrt[]{3}$ - 2 d,-3$\sqrt[]{3}$ và -2$\sqrt[]{7}$

Xác định các phương tiện và biện pháp liên kết trong câu sau: Thực dân phản động Pháp động viên hải lục không quân hàng chục vạn người. Chúng chi tiêu vào quân phí mỗi ngày hàng chục triệu bạc.

Writ in English : 1. Có 1 ít nước ở trong chai - 2. Có40 hs ở trong lớp của tôi - 3.ko có những bông hoa ở trong phòng khác - 4. Ko có 1 cái tv ở trong phòng ngủ của tôi - 5. Có những quyển sách ở trên bàn ko ? - 6. Có 1 con mèo ở dưới cái bàn ko? - Giúp mik với

i will have to go shopping.there's.......anything to eat

Cho tứ giác ABCD, biết rằng tồn tại điểm O sao cho OA=OB=OC=OD và−→OA +−→OB +−→OC +−→OD =−→0 . Chứng minh rằng tứ giác ABCD là hình chữ nhậ