user-avatar
nngan1224
2 năm trước
Đốt cháy 6,2g photpho trong bình kín chứa 7,84 lít oxi (ở đktc) tạo thành điphotpho pentaoxit P2O5 thì: a/ Chất nào còn dư sau phản ứng? Số gam chất dư? b/ Tính khối lượng P2O5 tạo thành? giải hộ vs
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

II. Chia động từ trong ngoặc 1. …………. My and Thanh ………………(talk) on the telephone now? 2. They ………………(plant) trees every early year. 3. He ………………(not study) Math at the moment. 4..………………she …………………(play) badminton every afternoon? 5. They sometime …………………(do) morning exercises at 5.30. 6. Thanh and I …………………(be) at home now. 7. Hung …………………(run) about 5 km every morning. 8..………….Hung and Minh sometime …………………(meet) each other? 9. Every evening, she …………………(jog) about 3 km. 10. He always …………………(drive) his car to work. But now, he …………………(ride) his motorbike to work. III. Read the passage about Phong’s weekend and answer the questions. On Friday’s afternoon, after school, I usually surf the Net or listen to music. In the evening I often go to the cinema with my friends. On Saturday morning I get up late and have breakfast. Then I play football with my classmates in the park. In the afternoon I watch TV (usually a football match). In the evening I go to my best friend’s place – we sometimes play computer games, or we talk. On Sunday morning I do my homework. Then I listen to music or watch TV. On Sunday evening I surf the Net again, or read a book. 1. Where does Phong often go on Friday evening? 2.When does he play football? 3.What does he watch on Saturday afternoon? 4.What does he do on Sunday morning? 5.When does he surf the Net?

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team