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Khanhhq220708
2 năm trước
Tính theo PTHH Hoà tan 5,6 Fe trong dung dịch axit clohidric. Tính thể tích H2 (ĐKTC) Lập PTHH a) 2K + 2H2O b)Fe2O3 + 3H2 c)Ca + 2H2O d)2Al + 3H2SO4 giúp e nhanhh với ạ :(((
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