Dẫn 2,24l khí CO2 (đktc) vào 200ml dung dịch xút có nồng độ 0.75M. Tính khối lượng muối tạo thành sau phản ứng

B= 3^n+3 + 2^n+1 + 3^n+1 - 2^n+1 chia hết cho 10 Hãy chứng minh rằng với mọi số nguyên dương n

1. "Don't shout" I said to Jun. => I....... 2. We have to park one car to the rink place.

Tìm giá trị nhỏ nhất của biểu thức a)x^2-x+1 B)x^2-4xy+4y^2+10 Giúp em với ạ

Mọi người dịch hộ mik bài này nha

Section V: There is a mistake in each of these sentences. Underline the mistake and then correct it. (2pts) 1. The dirt on vegetables can cause you sick . => .................................................................................................................. 2. Scientists say that the life started in the ocean . => ................................................................................................................. 3. He gave up to smoke 2 years ago. => ................................................................................................................... 4. He is a fast runner. He runs fastly. => ................................................................................................................... 5. Can I lend your pencil? I'm sorry. I'm using it. => ................................................................................................................... 6. You should keep silently when they are working. => .................................................................................................................. 7. How many times in a day do you brush your teeth ? => ................................................................................................................... 8. Long is worried because he has see the dentist. => ...................................................................................................................

nhanh hộ mik nha đang cần gấp !!!

Section I: Choose the word which has the underlined part pronounced differently from the others.(1pt) 1. A. school B. chair C. chemistry D. character 2. A. serious B. symptom C. sugar D. sauce 3. A. order B. novel C. portable D. score 4. A. coop B. cartoon C. stool D. indoors

điền các từ sau đây vào ô trống thích hợp buffalo drawm cart , harvest time ,paddy field , cattle , pasture, get , beehive , highlands , dairy products, nomad 1 if you want to gather honey , don't kick over the _______ 2 horses are grazing in the ________ 3 he helped his uncle load hay onyo a ____ 4 mongolia's nomads live in a traditional tent called ______ 5 we saw lots of lush rice __________on the way to the village 6 in mongolia , he spent time with the nomads of the Gobi ______ 7 a boy was driving the herd of _____to the pasture 8 it is ________________, and all the farmers are very busy 9 the Maasia are ____________and cattle raisers 10 the doctor told me to eat less red meat and ________ GIÚP MIK VS

giai cho minh bai 19 câu a,b lam trong 10p minh can rat gâp minh cam ơn