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bely25121510
2 năm trước
Cho 4 gam hỗn hợp 2 kim loại là Mg và Fe tác dụng với 200ml dung dịch H2SO4 loãng, dư. Khi phản ứng kết thúc, thu được 2,24 lít khí (đktc). Tính nồng độ mol của muối có trong dung dịch sau phản ứng
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