$2Al(OH)3 \overset{t^{o}}{\rightarrow} Al2O3 +3 H2O$
$Fe +3 AgNO3 \overset{t^{o}}{\rightarrow} Fe(NO3)3 +3 Ag$
$ZnO+ H2 \overset{t^{o}}{\rightarrow} Zn + H2O$
$Na2O + H2O\overset{t^{o}}{\rightarrow}2 NaOH$
$2Al +3 H2SO4\overset{t^{o}}{\rightarrow} Al2(SO4)3 +3 H2$
$K2 +2 H2O\overset{t^{o}}{\rightarrow}2KOH +H2$
$N2O5 + H2O\overset{t^{o}}{\rightarrow}2 HNO3$