Dãy chất gồm các oxit axit là: SO2, P2O5, CO2, SO3. CO2, SO3, Na2O, NO2. CO2, SO2, CO, P2O5. H2O, CO, NO, Al2O3.

Làm hộ mình bài 2 nha cảm ơn nhiều nhanh nha

Dãy chất gồm các oxit bazơ là: K2O, FeO, P2O5, Mn2O7. CuO, CaO, MgO, Na2O. CaO, CO2, K2O, Na2O. CuO, NO, MgO, CaO.

Baøi 1: Trong mặt phẳng tọa độ Oxy cho A (1 ; 4), B (3 ; -1) a. Viết phương trình tổng quát của đường thẳng AB. b.Viết phương trình đường tròn tâm A, bán kính R = 3. c. Lập phương trình tham số của đường thẳng AB Baøi 2: : Trong mặt phẳng tọa độ Oxy cho A (4 ; 3), B (2 ; 7) a.Viết phương trình tổng quát của đường thẳng AB. b.Viết phương trình đường tròn tâm A, bán kính R = 3. c. Lập phương trình tham số của đường thẳng AB

🙄🙄🙄🙄🙄🙄🙄😔😔😔😔😕😕😕😕😕 giúp mình

Các bạn ơi vẽ hộ mik một bức tranh có màu trắng đen NC: một bàn tay, một con bướm. Đẹp nha Xấu=bc. và có viết chữ Butterfly kế bên nữa nhoa

Task 7 –Put the sentences into direct speech. Look at the example. e.g.: He said he had forgotten to post the letter.  'I have forgotten to post the letter.' or 'I forgot to post the letter.' 1) Jake asked you what he could do for you. ____________________________________________ ___________________________________________ _____ 2) Molly said to Oliver she was playing in the sands then. ____________________________________________ ___________________________________________ _____ 3) Dan told me to be careful with those dogs. ____________________________________________ ___________________________________________ _____ 4) Mr Smith asked her to listen to him carefully. ____________________________________________ ___________________________________________ _____ 5) Charles said to us he was going to bring us something from Japan. ____________________________________________ ___________________________________________ ___________________________________________ ________ 6) My teacher asked my father whether I spent enough time with doing my homework. ____________________________________________ ___________________________________________ _____ ____________________________________________ __

Vẽ cặp sách. NL: Năm học mới mua cặp Hello Kitty, Elsa or Barbie?

Task 6 – Complete the sentences with the correct form of the verbs. 1) Jake said to Mary he ____________ ____________ since his accident. (not / to drive) 2) Dad asked me what I __________________ then. (to draw) 3) Olivia asked Jason where they ____________________ that day. (have to / to go) 4) Paul said he __________________ an apple that day. (to buy) 5) Mr Johnson told the police somebody _______________ into his house while he ____________________. (to break, to sleep) 6) The official told me _______________ him my passport. (to show) 7) The reporter announced the murderer ______ ________________ in his home the previous night. (to catch - passive) 8) Jason said to me he ____________________ when he ________________ five. (can / to write, to be) 9) Brian said he ____________________ before that football match the day before. (not / to sleep)

Ở đây có ai sử dụng github ko chỉ mik vs