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loga1110
2 năm trước
Viết các phương trình hóa học thực hiện các phản ứng sau: ⦁ Etilen tác dụng với H2 (Ni/to). ⦁ Etilen tác dụng với dung dịch brom. ⦁ Etilen tác dụng với H2O (xúc tác H2SO4, to). ⦁ Propilen tác dụng với H2 (Ni, to). ⦁ Propilen tác dụng với dung dịch brom.
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From: Brett.walker149@gmail.com To: Subject: Re: sports Dear Brett Thanks for your email. You do lots of sports at school in Canada. I’d love to play ice hockey one day. We do lots of sports at our school too. We’ve got a swimming pool at school and our class go swimming every Wednesday. We also play tennis, volleyball and football, but football in Australia is different to soccer. You can touch the ball with your hands! There are lots of after-school sports clubs in Australia too. I go to a surfing club after school on Tuesdays and Thursdays. We go to the beach and learn how to surf. It’s great fun! Can you surf in your country? Write soon Rob 1. Where does Rob live? __________________________________________________________________ 2. How often does Rob go swimming? __________________________________________________________________ 3. Is football in Australia the same as soccer? __________________________________________________________________ 4. On what days of the week does Rob go to a surfing club? __________________________________________________________________ 5. Where does Rob go to learn how to surf? __________________________________________________________________ 6. Does Rob like surfing? __________________________________________________________________

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