Viết phương trình chữ của phản ứng hóa học sau:
- Than cháy trong oxi sinh ra khí cacbonic, khí này gây hiệu ứng nhà kính làm trái đất nóng dần lên
- Khí nitơ tác dụng với khí hidro tạo thành khí amoniac
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Chỗ này để trả lời mấy câu Tiếng anh chứ ko phải toán đâu
Câu này kũng chịu
1. goes
2. don't
3. will take up
4. cooking- preparing
5. does your mother do...?
6. won't play
Bạn tránh đăng nhầm môn học nhé.
1. - Have you ever (do) done volunteer work?
- Yes, I (join) joined my school volunteer team last summer.
2. I know a lot about Beijing because I (go) went there last summer.
3. Sit down and watch TV; I (finish) will finish my work soon before I join you.
4. Have you (ride) ridden into town on your new bike yet?
5. They (not arrive) haven't arrived yet, but they should be here soon.
6. It’s the first time I (get) have got all the answers right in a test!
7. She (start) stared doing the gardening an hour ago, and she (not finish) hasn't finished it yet.
8. Eating fruit and vegetables every day (be) is very healthy.
III. Put a suitable word in each gap to finish the following sentences.
1. Drink and eat more, and play computer games less, and you will feel better.
2. Do you know that tortoises live longer than people?
3. Try to eat less fat and do more exercise if you want to lose weight.
4. My uncle’s hobby is collecting old electric fans. He has a huge collection.
5. It is very noisy in the club. I prefer somewhere more quiet.
1. Have offered
2. cleaned
3. Have you ever recycled?
4. tutors
5. Did you provide ?
6. has donated
7. Has Tom paripated ?
8. didn't start
9. Does your friends sing ?
10. haven't finished
BẠN THAM KHẢO NHA. CÓ CHỖ NÀO SAI THÌ NÓI VỚI MÌNH. CHÚC BẠN HỌC TỐT Ạ ^^
than+oxi- khí cacbonic
nitơ+hiđro- amoniac