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thithoithoi01
2 năm trước
một hỗn hợp A gồm na và fe có khối lượng 10,2g nếu hòa tan hết hỗn hợp này trong nước thì thu được 2,24 lít khí hidro a) tính khối lượng mỗi kim loại trong hỗn hợp A b) nếu hòa tan hết cũng hỗn hợp trên trong dung dịch HCl thì thể tích H2 thu được là bao nhiêu
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