1) \(C+O2-->CO2\)==>Pư hóa hợp
\(2Mg+O2-->2MgO\)==>Pư hóa hợp
\(4Al+3O2-->2Al2O3\)==>Pư hóa hợp
\(C2H6+\frac{7}{2}O2-->2CO2+3H2O\)
\(C2H2+\frac{5}{2}O2-->2CO2+H2O\)
2)
\(3Fe+2O2-->Fe3O4\)
\(S+O2-->SO2\)
\(CH4+2O2-->CO2+2H2O\)
\(2Cu+O2-->2CuO\)
\(4P+5O2-->2P2O5\)
\(C3H8O+\frac{9}{2}O2-->3CO2+4H2O\)
\(C4H10+\frac{13}{2}O2-->4CO2+5H2O\)
\(C7H16+11O2-->7CO2+8H2O\)