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dn.nguyenduong0109
2 năm trước
Một sợi dây nhôm có khối lượng là 16,2g được nhúng vào dd CuSO 4 25%. a) Viết PTHH xảy ra. b) Tính khối lượng dd CuSO 4 25% cần dùng để làm tan hết sợi dây nhôm trên. c) Tính khối lượng Đồng tạo thành sau phản ứng.
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