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tranvanpho61
2 năm trước
Cho 6,5g kẽm tác dụng với 100g dd axit clohiđric có chứa 0,4 mol axit HCl. a. Viết phương trình phản ứng b. Tính thể tích khí hiđro thu được ở đktc? c. Tính nồng độ phần trăm của dung dịch kẽm clorua tạo thành sau phản ứng ?
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