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sweetcherry1080
2 năm trước
Có 2 lọ không nhãn có chứa lần lượt hai dung dịch: dd H2SO4, dd HCl. Hãy dùng những dung dịch có sẵn trong phòng thí nghiệm để nhận biết chất đựng trong mỗi lọ. Viết phương trình hóa học. giúp mình với ạ
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