Hòa tan hết 6 gam hỗn hợp rắn gồm CaCo3 và Na2Co3 trong dung dịch HCl dư thấy thoát ra 1,2768 lít khí co2 (đktc). Viết cái phương trình phản ứng xảy ra và tính số gam từng muối thu được?

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1. Use the passive forms of the verbs in brackets: Sử dụng hình thức bị động của động từ trong ngoặc đơn (5ms) 1. The door (open ) ………………………by Tom 2. This picture (paint) …………………………by Hoa . 3. A lot of money (spend) …………….………. on advertising every day 4. This room (use) …………..……….…… only on special occasions . 5.. English (speak) ……………….……. all over the world . 6. The ticket ( send ) …..………….………to you next week. 7. His car (repair ) ………..……………… tomorrow. 8. We ( meet ) …………..…………. at the station by her parents tomorrow. 9. This prọject ( carry out) …………………………… next month. 10. A new hospital (build) ………………..….. in the neighborhood next year. 2. Change the following sentences into passive voice: Đổi các câu sau sang câu bị động (3ms) 1. My father waters this flower. This flower …………………………………………………………………….…………….. 2. The cat catches the mouse . The mouse….. ……………………………………………………………………………….. 3. They sell rice here Rice …………………………………………………………………………………………… 4. Does Nam clean his teeth twice a day? Is Nam’s teeth………………………………………………………………………………… 5. Hoa will tidy the room. The room ………………………………………………………….………………………….. 6. Mr. Minh will buy that car. That car ……………………………………………………………………………………… 3. Change the following sentences into passive voice (2ms) 1 .They will paint their house. ……………………………………………………………………………………………………… 2. Ann doesn’t feed the cats every day. ……………………………………………………………………………………………………… 3. How many languages do they speak in Canada? ………………………………………………………………………………………………………. 4.They will keep this room tidy all the time. ………………………………………………………………………………………………………