Trong số những chất có công thức hoá học dưới đây, chất nào là muối axit? Ca(OH)2 NaCl NaOH NaHCO3

Cho tam giác nhọn ABC có 2 đường cao BD,AE cắt nhau tại H cm: 4 điểm A,E,D,B cùng thuộc 1 đường tròn

Giúp mik vs ạ Mik đang cần gấp Yêu cầu độ chính xác cao

ae lm hộ mik bài này nha trong 30p

Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions. We should wait for the traffic lights…………… before we cross the street. A. turn green B. turn yellow C. to turn green D. to turn yellow 10 Find the word which has a different sound in the part underlined. A. easily B. cheap C. heat D. weak

Mark the letter A, B, C, or D to indicate the sentence that is closed in meaning to each of the following sentences. What is the distance between your village and Hanoi ? A. How far it is from your village to Hanoi ? B. How often is it from your village to Hanoi ? C. How much is it from your village to Hanoi ? D. How far is it from your village to Hanoi ? 8 Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions. This film isn’t ……………short as the film I watched last week. A. as B. too C. than D. but

Viết một đoạn văn về chủ đề : Bạn thích cuộc sống ở nông thôn hay thành thị hơn. Tại sao ?. ( Khoảng 12-15 dòng )

Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions. How many …………… do you eat every day? A. banana B. milk C. orange D. apples 6 Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions. Your car is here and __________is over there.. A. me B. mine C. my D. I

There is a mistake in the four underlined parts A, B, C, D of each sentence. Find the mistake John usually goes to the dancing club at Saturday night. A. at B. usually C. night D. to 4 Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions. Lan learns English well, and Hoa does, ………….. A. neither B. so C. too D. either

khử hoàn toàn hỗn hợp gồm CuO và Fe2O3 nặng 14g phải dùng hết 5,04 lít khí H2 (đktc). Khối lượng hỗn hợp kim loại thu được sau khi phản ứng xảy ra hoàn toàn là: 6,8g 4,05g 10,4g 10,04g