1) \(4Al+3O_2\xrightarrow[]{t^o}2Al_2O_3\)
2) \(4K+O_2\xrightarrow[]{t^o}2K_2O\)
3) \(2Al\left(OH\right)_3\xrightarrow[]{t^o}Al_2O_3+3H_2O\)
4) \(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
5) \(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
6) \(2P+5Cl_2\xrightarrow[]{t^o}2PCl_5\)
7) \(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
8) \(2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\)
9) \(3Ca\left(OH\right)_2+2FeCl_3\rightarrow3CaCl_2+2Fe\left(OH\right)_3\downarrow\)
10) \(BaCl_2+H_2SO_4\rightarrow BaSO_4\downarrow+2HCl\)
\(4Al+3O_2->2Al_2O_3\)
\(4K+O_2->2K_2O\)
\(2Al\left(OH\right)_3-^{t^o}>Al_2O_3+3H_2O\)
\(Al_2O_3+6HCl->2AlCl_3+3H_2O\)
\(2Al+6HCl->2AlCl_3+3H_2\uparrow\)
\(2P+5Cl_2->2PCl_5\)
\(Fe_2O_3+3H_2SO_4->Fe_2\left(SO_4\right)_3+3H_2O\)
\(2NaOH+H_2SO_4->Na_2SO_4+2H_2O\)
\(3Ca\left(OH\right)_2+2FeCl_3->3CaCl_2+2Fe\left(OH\right)_3\downarrow\)
\(BaCl_2+H_2SO_4->BaSO_4\downarrow+2HCl\)