\({K_2}C{O_3} + 2HCl\xrightarrow{{}}2KCl + C{O_2} + {H_2}O\)
\(2NaCl + 2{H_2}O\xrightarrow{{dpdd}}2NaOH + {H_2} + C{l_2}\)
\(Fe + CuS{O_4}\xrightarrow{{}}FeS{O_4} + Cu\)
\(2Na + 2{H_2}O\xrightarrow{{}}2NaOH + {H_2}\)
\(N{a_2}O + {H_2}O\xrightarrow{{}}2NaOH\)
\(2Na + C{l_2}\xrightarrow{{{t^o}}}2NaCl\)
\(CuO + {H_2}\xrightarrow{{{t^o}}}Cu + {H_2}O\)
\(Cu{(OH)_2}\xrightarrow{{{t^o}}}CuO + {H_2}O\)
\(2Fe{(OH)_3}\xrightarrow{{{t^o}}}F{e_2}{O_3} + 3{H_2}O\)
\(2NaOH + CuC{l_2}\xrightarrow{{}}Cu{(OH)_2} + 2NaCl\)
\(3Ba{(OH)_2} + 2FeC{l_3}\xrightarrow{{}}3BaC{l_2} + 2Fe{(OH)_3}\)
\(CaC{O_3} + 2HCl\xrightarrow{{}}CaC{l_2} + C{O_2} + {H_2}O\)
\({P_2}{O_5} + 3{H_2}O\xrightarrow{{}}2{H_3}P{O_4}\)
\({H_3}P{O_4} + 3NaOH\xrightarrow{{}}N{a_3}P{O_4} + 3{H_2}O\)
\(CaO + {H_2}O\xrightarrow{{}}Ca{(OH)_2}\)
\(N{a_2}S{O_4} + BaC{l_2}\xrightarrow{{}}BaS{O_4} + 2NaCl\)
\(C{O_2} + Ca{(OH)_2}\xrightarrow{{}}CaC{O_3} + {H_2}O\)
\(2C{O_2} + Ca{(OH)_2}\xrightarrow{{}}Ca{(HC{O_3})_2}\)
