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1cho hh x gồm feo fe2o3 fe3o4 trong đó n Feo =n Fe2o3. hòa tan hết 34,8 gam hhX trong V lít dd HCl 0,5 M . tính V 2 cho a gam hh CuO, Fe2o3, tác dụng vừa đủ vs100ml dd Hcl 1M thu dc muối có tỉ lệ số mol là 1:1.tính a
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Linh is twelve years old . He is in grade 6. He lives in a house with his mother , father and sister . Their house is next to a bookstore . In the neighborhood ,there is a restaurant , a market and a stadium . Linh’s father works in a restaurant . His mother works in a market . Linh goes to school every morning . He has classes from seven to fifteen past eleven. Every morning , Bi gets up at six. He watches his face and brushes his teeth. At six –thirty he eats breakfast , then he goes to school . At twelve thirty , he goes home and has lunch . In the afternoon , he plays soccer . In the evening , he does his homework , then watches television. Answer the questions. 46. What does Bi do ?.............................................. 47. What time does he get up every morning ?.................................................. 48. What does he do after breakfast ?............................................................... 49. Does he go to school in the afternoon ?...................................................... 50. Does he play soccer in the afternoon?......................................................

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