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Cân bằng phương trình sau bằng phương pháp đại số : Fe2O4 + HNO3 -> Fe(NO3)3 + NO + H2O
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After-school clubs are a fantastic way to make friends. They are very popular in the UK. Here are some of them. Sports clubs are a great way to do exercise and meet people. Swimming clubs are very popular with young people. Clubs meet every day and members swim in the morning before school and in the evening after school. There are lots of competitions too. The Scouts is a big, international organization. Its name is ‘World Organization of the Scout Movement’. It is originally from Britain and is over 100 years old. Its members are from all over the world and they are 6-25 years old. More than 400,000 young people are Scouts in the UK today. 7 True False The British people like after-school clubs. 8 True False Students can go to swimming clubs in the morning. 9 True False There are no competitions in after-school clubs. 10 True False The Scouts is nearly 100 years old. 11 True False Scouts members are not above 30 years old. 12 True False There are four thousand Scouts members in the UK. nhanh hộ với ạ

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