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manhtrang2001
2 năm trước
Khi hòa tan 14,4g kim loại M có hóa trị ll bằng H2SO4 loãng dư thu được 13,44 lít khí H2 ở đktc a) Xác định tên kim loại M? b) Nếu hòa tan cũng lượng kim loại M vào dung dịch H2SO4 đặc nóng thì thu được V lít khi SO2 ở đktc. Tính V ? ( giúp mk vs ạ )
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