Na2SO3 + KMnO4 + nahso4 => na2SO4 + k2SO4 + mnso4 + H2O Mn giúp mk cân bằng pt này vs ạ vs lại tìm giúp mk cái số oxh vs

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IV. Give the correct tense/ form of the verb in brackets. (1 pt) 1. Minh (walk) 2. You shouldn't (go) 3. Look! The boys (climb) 4. There (be) V. Fill in each numbered blank with one suitable word from the box to complete the passage. (1pt) to school with his friend every day. out because it is raining now. the tree. It's dangerous. any books on the desk? because of has from hard - working class Mai's new school is in a quiet place not far (1) the city center. It has three buildings and a large yard. This year, there are twenty five classrooms with more than 800 students in her school. Most students are (2) and serious. The school has about 40 teachers. They are all helpful and friendly. Her school (3) Basketball. She likes English, so she joined the English club. She loves her school (4) a good school. VI. Read the passage carefully then do the tasks that follow. (1pt) Ha Long, Bay of the Descending Dragon, is popular with both Vietnamese and international tourists. One of the attractions of Ha Long is the Bay's calm water with limestone mountains. The Bay's water is clean during the spring and early summer. Upon arriving in Ha Long city, visitors can go along Chay beach. From the beach they can hire a boat and go out to the Bay. It is heard that the visitors can find some of the southeast Asia's most beautiful sites. Dau Go is one of the most beautiful caves in Ha Long. It was the cave in which General Tran Hung Dao hid wooden stakes to beat the Mongols on Bach Dang River in 1288. different clubs: Dance, English, Arts, Football and it is Part 1. Decide whether the statements are True (T) or False (F). (0.5 pt) Ha Long Bay doesn't have limestone mountains. Ha Long Bay is popular with both Vietnamese and international tourists. 1. 2. Part 2.Choose the best answer among A, B, C or D to answer the following questions. (0.5 pt) 1. How can visitors go out to the Bay from the beach? А. Ву сar. B. By bus. C. By boat 2. When did General Tran Hung Dao hide wooden stakes to beat the Mongols on Bach Dang River? A. In 1288 B.during early summer C.during the spring