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hoangdang1358
2 năm trước
Câu 4. Hòa tan hoàn toàn 8,4 gam sắt vào axit clohidric HCl. Thu được sắt (II) clorua FeCl2 và khí hidro. a. Tính thể tích khí thu được (đktc) b. Tính khối lượng axit đã phản ứng.
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