Cho 13gam Zn tác dụng với axit clohiđric. Sau phản ứng thu được kẽm clorua và thấy có khí hiđro thoát ra ở điều kiện tiêu chuẩn a) viết phương trình hóa học xảy ra b) tính thể tích hiđro thoát ra được ở điền kiện tiêu chuẩn c) tính thể tích khí hiđro ở trên để khử 130gam Fe2O3. Chất nào còn dư và lượng dư bao nhiêu gam? ( cho Zn=65, cl=35,5). Giúp em vs đi ạ

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