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loandang79
2 năm trước
1.Chất đc cấu tạo từ đâu 2. Hạt cấu tạo nên chất có đặc điểm gì 3. Hạt cấu tạo nên chất có kích thước như thế nào ? 4. Quan sát hạt cấu tạo nên chất bằng cách nào? 5. Tại sao các chất nhìn như liền một khối 6.Vậy giữa các nguyên tử, phân tử có đặc điểm gì?
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