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FexOy +(x-y)CO --->xFeO +(x-y)CO2
Đáp án:
FexOy + (x-y)CO -> xFeO + (x-y)CO2
#TIB
Mọi người giải giúp em bài 2 với ạ, em sắp làm không nổi rồi, càng sớm càng tốt ạ
Fill in the blank with a suitable word (with the first letter given) to complete each of the following sentences. 11. His kind words brought some CO________ to the grieving parents. 12. Let’s take someone else. A girl won’t be capable of RE________ that topic. 13. Alexander Graham Bell’s IN________ of telephone was recognized in 18th century. 14. Broccoli supplies a great sources of vitamin K, which is known to EN___________ thinking function and IM___________ brainpower. 15. In AC____________, special thin needles are put in different pressure points all over the body. Reorder the words to complete the sentences. 16. The creation of nature reserves will help to ensure the valsuirv ________________ of many endangered species. 17. If people stop destroying animal’s natural habitat, more species will survive and produce sporffings ________________. 18. The ntenvonirme ________________ is the air, water and land in or on which people, animals and plants live. 19. We should develop such teraltivena ________________ sources of energy as solar energy and nuclear energy. 20. Internet shopping has begun to have a serious acimpt ________________ on the traditional bookshops Choose from the list the word that is CLOSEST in meaning to the underlined word in each question. renowned/ nervous/ influences/ limited influences/ broadcasted/ preference/ dedicated 21. If you want to become a well-known singer, you need to have a unique selling point, a way to differentiate yourself from the crowd. 22. This game show has attracted many participants since it was aired in 2015. 23. Mother Teresa devoted herself to caring for the sick and the poor. 24.Our top priority is to clean and protect the environment in our neighbourhood. 25. Your people are now getting more and more concerned about environmental problems.
Giúp em tìm x với ạ,em xin cảm ơn
Exercise 4: Past simple or Past continuous In my last holiday, I went to Hawaii. When I (go) 1............to the beach for the first time, something wonderful happened. I (swim)2............in the sea while my mother was sleeping in the sun. My brother was building a castle and my father (drink)3 some water. Suddenly I (see)4............a boy on the beach. His eyes were blue like the water in the sea and his hair (be)5............beautiful black. He was very tall and thin and his face was brown. My heart (beat)6............fast. I (ask)7............him for his name with a shy voice. He (tell)8............me that his name was John. He (stay)9............with me the whole afternoon. In the evening, we met again. We ate pizza in a restaurant. The following days we (have)10............a lot of fun together. At the end of my holidays when I left Hawaii I said good-bye to John. We had tears in our eyes. He wrote to me a letter very soon and I answered him. Giảic thích thì gì và dấu hiệu luôn ạ
Giúp em bài 1 câu c) d) với ạ E cảm ơn ạ
Mọi người giúp em bài 9 với ạ Xin lỗi mng vì hỏi lúc đêm muộn ạ Em cảm ơn trc
Giúp em nhanh nhé ,vẽ cả hình cho em Mai em cần
Hấp thụ hoàn toàn 0,6 mol hh gồm co2 và so2 vào 500ml ba(oh)2 0,8M. a) những muối nào sẽ được tạo ra. b) tính tổng khối lượng muối thu được sau phản ứng nếu nco2:nso2=1:2. giúp mik vs!!
Exercise 1: Choose the correct tense 1. I saw/ was seeing the accident when I was waiting for the taxi. 2. What were you doing/ did you do when I phoned? 3. They didn't visit/ weren't visiting their friends last summer holiday. 4. It rained/ was raining heavily last July. 5. While people were talking to each other, he read/ was reading his book. 6. Chris was eating/ ate pizza every weekend last month. 7. While we were running/ run in the park, Mary fell over. 8. Did you find/ Were you finding your keys yesterday? 9. Who was she dancing/ did she dance with at the party last night? 10. They were watching/ watched football on TV all day. Giải thích tại sao chọn nhá .
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