Làm giúp mình bài này với ạ. Mình vote 5sao. Mãi iu <33 Cho 6 g kim loại Mg phản ứng với 2,24 lít O2 (đktc), sau phản ứng tạo thành magie oxit (MgO) a) Viết phương trình hoá học. b) Tính khối lượng MgO tạo thành sau phản ứng.

Giúp e với ạ 10 câu trắc nghiệm sau

I. Rewrite the sentences I would like six apples. DOZEN ______________________________________________________________________________ What is the price of a bowl of beef noodle soup? MUCH ______________________________________________________________________________ There is sugar in many kinds of food. HAVE ______________________________________________________________________________ We haven't got any tomatoes. THERE ______________________________________________________________________________ My sister likes chicken very much. FAVOURITE ______________________________________________________________________________ II. Write full sentences using the words given There/ be / meat/ and/ sugar/ your / diet. ______________________________________________________________________ I / be/ very/ thirsty/ and /I /need / water. ______________________________________________________________________ My father/ like/ eat/ fish/ than/ eat/ meat. ______________________________________________________________________ Many/ foreigners/ like/ eat /Vietnamese food /because /it /very/ strange /interesting. ______________________________________________________________________ Banh Chung/ be/ Vietnamese/ traditional/ dish/ that /must/ part / Tet meals. ______________________________________________________________________ How much/ fruits/ vegetables / you /eat /a /day? _____________________________________________________________________ Can/ you/ tell/ me /how/cook /beef /noodle? ______________________________________________________________________ What/ your/ favorite /dish / breakfast? ______________________________________________________________________ Do/you/ want / try/ chicken soup /I /cook? _______________________________________________________________________ There/ not/ something/ left/ dinner/ so/I/ have to/ eat / restaurant. _______________________________________________________________________ Snack/ be / small/ meal/ you/ eat/ when/ hungry. _______________________________________________________________________ How much/ water /should/I /pour / pot? _______________________________________________________________________ I/ be / afraid/ there/ not / sugar /left / refrigerator. _______________________________________________________________________ main/ ingredient/ use/ Vietnamese food/ be / rice/ fish sauce / vegetables. _______________________________________________________________________ Many /main/ dish/ and/ snacks/ Vietnam / be/ made / from/ rice. _______________________________________________________________________

B10 : C/m A= $n^{3}$-n+6 $\vdots$ 6

5 phút nha 3 : | x - 1 | = 27 : | 1 - x |

Lúc 5 giờ hai xe ôtô xuất phát đồng thời từ 2 địa điểm A và B cách nhau 180km và chuyển động ngược chiều nhau.. Biết vận tốc xe xuất phát từ A là 36km/h,. xe xuất phát từ B với vận tốc 54km/h b/ Lập phương trình chuyển động của 2 xe trên cùng hệ tọa độ, cho rằng 2 xe chuyển động thẳng đều c/ Xác định vị trí và thời điểm hai xe gặp nhau. d. lúc 6h 2 xe cách nhau bao nhiêu ?

Viết bài văn ngắn trình bày về lòng thương mẹ của bé Hồng trong đoạn trích "Trong lòng mẹ"

Hai người đi xe đạp cùng khởi hành một lúc và chuyển động thẳng cùng chiều. Ban đầu họ cách nhau 0,48km. Người thứ nhất đi với vận tốc 5m/s và sau 4 phút thì đuổi kịp người thứ hai. Tính vận tốc của người thứ hai.

II. Fill in each blank with ONE suitable word to complete the following passage Today, you can find fast food restaurants in almost every big city. In some places, you (1) _____________ in a line and get a hamburger or a hot dog in a paper box; (2) _____________ others you can pick up a tray of fish, chicken, pizza (3) _____________ even Mexican and Chinese food; and in some fast food places you can even (4) _____________ your car up to a window and place your order. A (5) _____________ minutes later, a worker passes you your food (6) _____________ the window and you can drive away and eat (7) __________ in your car. In New York, Paris, Tokyo, Singapore and thousands of (8) _____________ cities around the world, new fast food restaurants (9) _____________ every day. But why do people (10) _____________ fast food restaurants to more comfortable restaurants where they can sit quietly at a table and watch the world go by? III. Read the text and decide whether each statement below is true (T) or false (F). Circle T or F. Around the world, people eat different food to stay healthy. What healthy food around the world do you know? In Japan, people eat lots of rice, vegetables and fish. These kinds of food have lots of fiber and vitamins. It doesn’t have much fat. In countries near the Mediterranean Sea, people eat lots of bread, salad and fruit. They use olive and tomatoes for making salads and for cooking. Scientists think that olive oil and tomatoes help people to stay healthy. In Peru and Bolivia, people eat lots of fruits and vegetables. Some people eat rice or quinoa seeds with meat and potatoes. Quinoa has lots of proteins, fiber and iron. 1. Food in Japan has a lot of fiber, vitamins and much fat. T/F 2. People hardly eat bread, salad and fruit in countries near the Mediterranean Sea. T/F 3. In Peru and Bolivia, some people eat plenty of rice, potatoes and meat. T/F 4. Quinoa is a kind of food having lots of fiber, proteins and iron. T/F 5. Scientists believe that olive oil and tomatoes can help you keep healthy. T/F

$x^2 -z^2 + y^2 - 2xy$ Phân tích đa thức thành nhân tử