Em tham khảo nha:
\(\begin{array}{l}
a)\,Mg + 2HCl \to MgC{l_2} + {H_2}\\
b)\,F{e_2}{O_3} + 3{H_2} \xrightarrow{t^0} 2Fe + 3{H_2}O\\
c)\,2KCl{O_3} \xrightarrow{t^0} 2KCl + 3{O_2}\\
d)\,F{e_3}{O_4} + 3CO \xrightarrow{t^0} 3Fe + 4C{O_2}\\
e)\,BaO + {H_2}O \to Ba{(OH)_2}\\
f)\,Ca + 2{H_2}O \to Ca{(OH)_2} + {H_2}\\
g)\,2KMn{O_4} \xrightarrow{t^0} {K_2}Mn{O_4} + Mn{O_2} + {O_2}
\end{array}\)