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nguyenthaomy6a
2 năm trước
Đốt cháy 23,8 (g) hỗn hợp 2 kim loại Al, Zn trong lọ khí O2 vừa đủ. Sau phản ứng thu được 36,6 (g) hỗn hợp 2 oxit. Tính khối lượng O2 phản ứng, Tính thể tích O2 cần dung ở đktc.
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Exercise 4: Read and complete the sentence with no more than three words. A DIFFERENT HOBBY Danny has a very interesting hobby. He collects tropical fish! His bedroom is a large aquarium all around the wall. He has collected fish since he was four. His first fish was an Angle fish. The only problem is that it can eat smaller fish. Danny has visited a lot of different countries such as Australia to dive in the beautiful weather. He loves the ocean. Now he is fourteen. He has had a big aquarium for three years, since he was eleven. Last year, when Danny was in Caribbean for his holiday, he saw sharks when he was diving. He wants to have an aquarium where he can keep one or two small sharks, but it is quite difficult in England. Sometimes he goes to the local zoo to feed the big fish. He has never fed the sharks because he is too young. 1. There is ...........................around his bedroom wall. 3. His first fish is ........................... 4. An angle fish eats ........................... 5. Danny had ...........................when he was eleven. 6. Danny went to ........................... for his holiday. 7. Danny wants to keep one or two small ........................... 8. Danny has never fed the sharks because he is ...........................

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