nguyenphuong103022 nguyenphuong103022

15-06-2021
Chemistry

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cho 6,72 gam Fe tan hết trong dung dịch H2SO4 đặc nóng dư thu được V lít khí SO2. Giá trị của V là

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lamthuong9603 lamthuong9603

15-06-2021

4,032

BT electron

nSO2= 3nFe/

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