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luongvilong2001
2 năm trước
lập phương trình hóa học cho các phản ứng sau Mg + HCl->MgCl2 + H2 Fe2O3 + CO -> Fe + CO2 Al + H2SO4 ->Al2(SO4)3 + H2 Fe(OH)3 + H2SO4 ----> Fe2(SO4)3 + H2O
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