Có những chất sau: MgO , Zn , CuO, Fe(OH)2 , C12H22O11 Chất nào tác dụng với dung dịch H2SO4 loãng sinh ra: a) Dung dịch màu xanh lam. b) Dung dịch có màu xanh nhạt c) Dung dịch không màu d) Dung dịch không màu đồng thời có khí nhẹ hơn KK và cháy được trong KK *H2SO4 đặc tác dụng được với những chất nào để thể hiện tính chất riêng của nó

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1. Although I am poor, I will donate tặng that beggar ăn mày ten thousand dong. => I am ……………………………………………………………………………. => No……………………………………………………………………………….. 2. Though he was not very well – qualified giỏi, he could benefit đem lại lợi ích cho that company. => He was …………………………………………………………………………….. 3. Her parents encouraged khích lệ her to take an exam to Lam Son School though she was bad. => She was…………………………………………………………………………………. => However………………………………………………………………………………. 4. She lives in the countryside, but she cycles đạp xe to work every day. => Though……………………………………………………………………………… 5. There are a lot of trees, but we still plant trồng more trees every year. => Though………………………………………………………………………………… 6. He is tired, but he is cleaning the beach as a volunteer tình nguyện viên. => Although……………………………………………………………………………….. => Tired………………………………………………………………………………….. => No………………………………………………………………………………………. 7. My parents are very poor, but they provide cung cấp me with enough đủ money every month. => Even though…………………………………………………………………………….. 8. We are very busy, but we have to take care of quan tâm/ chăm sóc the environmental problem. => Though………………………………………………………………………………… => Busy…………………………………………………………………………………… => However……………………………………………………………………………….. 9. Despite our young age, we should take care of elderly people người già. => We are young…………………………………………………………………………. =>Young……………………………………………………………………………………… =>No………………………………………………………………………………………………. 10. Our life is not very good, but we had better help people in a flooded areavùng lũ => Much as………………………………………………………………………………. =>Good………………………………………………………………………………….. => No…………………………………………………………………………………….