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trinhngoclong2012
2 năm trước
Chỉ chọn đáp án Bài thi e e cảm ơn
Thích Trả lời Chia sẻ

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Câu 27: Độ tan của NaCl trong nước ở 200C là 36g. Khi mới hoà tan 16g NaCl vào 50g nước thì phải hoà tan thêm bao nhiêu gam NaCl nữa để dung dịch bão hoà. A. 1g B. 2g C. 3g D. 4g Câu 28: Số g chất tan cần để pha chế 2 lit dung dịch NaCl 0,9M là A. 105,3g B. 10,53g C. 1,8g D. 18g Câu 29: Để khử hoàn toàn 19,2 gam hỗn hợp gồm CuO và FeO ở nhiệt độ cao, cần dùng 5,6 lít khí H2 (đktc). Khối lượng mỗi chất trong hỗn hợp ban đầu lần lượt là A. 10g và 9,2g B. 12g và 7,2 g C. 7,2g và 12g D. 9,2g và 10g Bài 30: Cho 3,6 gam oxit của một nguyên tố kim loại hóa trị II tác dụng với dung dịch HCl dư, sau phản ứng thu được 6,35 g muối clorua. Nguyên tố kim loại đó là A. Ca B. Mg C. Cu D. Fe (Cho: Fe=56; Cu=64; Mg=24; Ca=40; O=16; Na=2

Revision I. Read and complete My family lives near a small school. There are four ……..(1) in it. My parents, sister and me. I am the youngest member. My father is a worker in the factory, He works such as an engineer. He ……..(2) up early in the morning. First he brushes his teeth and ………(3) his face. Then he has a bread ………..(4) breakfast. His work starts from7.00 am to 4.00 pm so He comes ………..(5) home very early. In the evening He stays at home , watches TV and goes to bed at 10.00 pm. And My mother is an English teacher at Hung Ha town. My parents are very young. My sister is a student …..(6) Minh Khai primary school. She is thirteen years old. She is in her classroom. She is studying Arts subject. She can draw many pictures. They are very beautiful. She likes Arts the most because she wants to be an artis. I am a student too, I like ……..(7) football, go fishing, go camping and go wsimming in summer. Last year my family went to Ho Chi Minh city to visit our uncles and ants. They …….(8) many photoes with my family. I bought a lot of souvernirs ……..(9) my friends. Now I am in my class I am learning English because tomorrow my school is holding the English language Festival. All the teachers and students are going to ……(10) beautiful school uniforms. We are going to have a good time. 1. a. members b. member c. personal d. peoples 2. a. wake b. waked c. wakes d. got 3. a. wash b. washes c. washed d. is washing 4. a. about b. with c. to d. for 5. a. out b. 0 c. back d. in 6. a. at b. in c. on d. of 7. a. to play b. play c. played d. playing 8. a. took b. take c. takes d. are going to take 9. a. to b. for c. about d. of 10. a. the b. with c. a d. wear II. Complete the sentences 1. How / weather / yesterday? ………………………………………………………………………………… 2. Why / aren’t / you / train? ………………………………………………………………………………… 3. He / going / home / of / souvernirs. ………………………………………………………………………………… 4. How far / it / there / HaNoi? ………………………………………………………………………………… 5. Is / he / the museum / the zoo? ………………………………………………………………………………… 6. My brother / not / post office / tomorrow. ………………………………………………………………………………… 7. Did / to bed / 7.00 pm? No, She / not. …………………………………………………………………………………

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