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loga15
2 năm trước
Cho những phản ứng hóa học sau: Alo + O2-> Al2O3 KNO3 -> KNO2+O2 P+O2 ->P2O5 C2H2 + O2->CO2+H2O HgO -> Hg + O2 Cho biết phản ứng nào là: a,phản ứng oxi hóa b,phản ứng hóa hợp c, phản ứng cháy d, phản ứng phân hủy e, phản ứng tảo nhiệt
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III.Read the articles about the favourite Saturday activity of some students, and then answer the questions. A.Carlos – Rio de Janeiro, Brazil. Go to Ipanema Beach. Play volleyball or go swimming in the Atlantic Ocean. Look at the people. Everybody is happy. It’s my favourite place. B.Michiko – Tokyo, Japan. Go to a department store in Shibuya. Shibuya is a great shopping area in Tokyo. Sometimes it’s very crowded, but that’s OK -I love shopping. C.Lise – Paris, France. Go to the Eiffel Tower. It’s really tall. Look at the river and the beautiful buildings. The view of Paris is great. D.Jason – New York City, USA. Go to the skating rink in Central Park. Look at the ice-skaters. They’re good! Or, go skating. It’s really fun Is Shibuya in Paris? ________________ Are the ice-skaters in Central Park good? ________________ What is the name of Carlos’s favourite place? ______________ Is Michiko a shopping fan? ________________ Where is Carlos from? ________________ Is the Eiffel Tower in France? ________________ Is Central Park in Tokyo? ________________

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