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pham31182
2 năm trước
Làm nhanh giúp ạ Cho những chất sau: Cu(OH)2,Al,CaO,SO2,ZnCO3,NaHCO3,BaBr2,Fe3O4,Ca(HSO3)2,Cr2O3,Ba3(PO4)2,PbS,Fe Những chất nào tác dụng được với các dung dịch HCl H2SO4 loãng.Viết PT
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Paragraph 1 Dong Da Secondary School is in Hanoi. It’s a big school. It has over 2140 students. The students go to school from Monday to Saturday. The school has a big playground with many trees. There is also a gym, a lab and a library. The school is a public school so the students don’t have to pay money to go to this school. Paragraph 2 The British International School of Vietnam is a boarding school. Children sleep at school at night, and they go to school there during the day. It has teachers from all over the world, so it is an international school. It is in Ho Chi Minh City. The school is surrounded by trees and houses, and it has parks all around. Students study creative subjects, like art and music. This is a private school. Children have to pay money to go there. 1. Dong Da Secondary School has over students. 2. There are many in Dong Da school’s playground. 3. You don’t need to pay to go to public school. 4. British International School of Vietnam is a school. 5. Students learn subjects like art and music. 6. Students at boarding school sleep at at night.

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