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khanhldh
2 năm trước
1)Cho V lít (đktc) khí H2 đi qua bột CuO, thu được 32g Cu.Biết phản ứng xảy ra hoàn toàn. Tìm V Ai xong đầu mình cho câu trả lời hay nhất 😚😚😚
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