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Chemistry, 23.07.2021 05:10 kathrynaveda

Cho 12 gam hỗn hợp Fe và Cu tác dụng với dung dịch HCl loãng thu được 2,24 lít khí Hiđrô (đktc). Khối lượng của Fe và Cu lần lượt là * 3,08 gam và 6,92 gam.
5,6 gam và 6,4 gam.
3,6 gam và 6,4 gam.
6,92 gam và 3,08 gam.

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Cho 12 gam hỗn hợp Fe và Cu tác dụng với dung dịch HCl loãng thu được 2,24 lít khí Hiđrô (đktc). Khố...
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