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vuyennhi266
2 năm trước
Cho kim loại Al có dư vào 400ml dung dịch HCl 1M . Dẫn khí bay ra cho đi qua ống đựng CuO có dư nung nóng thì thu được 11,52 gam Cu. Tính hiệu suất của quá trình phản ứng
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