Hoàn thành các sơ đồ phản ứng sau:
a) Fe + O2 → Fe3O4.
b) Al2(SO4)3 + BaCl2 → BaSO4 + AlCl3.
c) NaOH + FeCl3 → Fe(OH)3 + NaCl.
d) CH4 + O2 → CO2 + H2O.
Giải chi tiết:
\(\begin{gathered}
a)\,\,3Fe\, + \,2{O_2}\,\xrightarrow{{{t^0}}}\,F{e_3}{O_4} \hfill \\
b)\,\,A{l_2}{(S{O_4})_3} + \,3BaC{l_2}\,\,\xrightarrow{{}}\,\,3BaS{O_4}\,\, + \,\,2AlC{l_3} \hfill \\
c)\,\,\,3NaOH\,\, + \,\,FeC{l_3}\,\,\xrightarrow{{}}\,\,Fe{(OH)_3}\,\, + \,\,3NaCl \hfill \\
d)\,\,C{H_4} + 2{O_2}\xrightarrow{{{t^0}}}C{O_2} + 2{H_2}O \hfill \\
\end{gathered} \)