Câu hỏi của Khanh Huynh

\(2Al+3CuSO_4\rightarrow Al_2\left(SO_4\right)_3+3Cu\downarrow\)\(2Mg+O_2\underrightarrow{t^o}2MgO\)\(6NaOH+Al_2\left(SO_4\right)_3\rightarrow2Al\left(OH\right)_3\downarrow+3Na_2SO_4\)\(Fe_xO_y+yH_2\underrightarrow{t^o}xFe+yH_2O\)Câu trả lời: \(2Al+3CuSO_4\rightarrow Al_2\left(SO_4\right)_3+3Cu\downarrow\)\(2Mg+O_2\underrightarrow{t^o}2MgO\)\(6NaOH+Al_2\left(SO_4\right)_3\rightarrow2Al\left(OH\right)_3\downarrow+3Na_2SO_4\)\(Fe_xO_y+yH_2\underrightarrow{t^o}xFe+yH_2O\)