user-avatar
khuatthinh123sc
2 năm trước
Ở một nông trường người ta dùng muối đồng ngậm nước CuSO4 . 5H2O để bón ruộng. Người ta bón 23 kg muối trên một hecta đất. Tính khối lượng đồng đưa vào đất và số ng/tử đồng đưa vào đất trong lượng phân trên. Biết rằng muối đồng ngậm nước có chứa 4% tạp chất.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

EXERCISE 1: CHUYỂN CÁC CÂU SAU SANG BỊ ĐỘNG. 1. They told me that you were the best architect in this city. 2. She reported that the flowers were killed by frost. 3. Some people inform me that the director is going to take a business trip to England. 4. That officer announced that the meeting was delayed until next week. 5. He discovered that this cotton was grown in Egypt. 6. They promise that the performance will start on time. 7. He recommends that we should stay at the city center. 8. We believed that Alice would pass the driving test. 9. The director notifies all the workers that they will have to work extra hard this month. 10. They have persuaded me that they will go with me to the stadium. 11. They have decided that the company will go to the beach together at the weekend. 12. People think that Maradona is the best football player in the 20th century. 13. They find that the job is not suitable for a girl like her. 14. The teacher explained that this powerful engine pulled the train. 15. He told me that his football team had played well last season

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