Em tham khảo nha:
\(\begin{array}{l}
32)\,{C_2}{H_2} + 2B{r_2} \to {C_2}{H_2}B{r_4}\\
33)2\,{C_6}{H_5}OH + 2Na \to 2{C_6}{H_5}ONa + {H_2}\\
34)\,2C{H_3}COOH + N{a_2}C{O_3} \to 2C{H_3}COONa + C{O_2} + {H_2}O\\
35)\,C{H_3}COOH + NaOH \to C{H_3}COONa + {H_2}O\\
36)\,3Fe + 2{O_2} \xrightarrow{t^0}F{e_3}{O_4}\\
37)\,Ca{(OH)_2} + 2HBr \to CaB{r_2} + 2{H_2}O\\
38)\,Ca{(OH)_2} + 2HCl \to CaC{l_2} + 2{H_2}O\\
39)\,Ca{(OH)_2} + {H_2}S{O_4} \to CaS{O_4} + 2{H_2}O\\
40)\,Ca{(OH)_2} + N{a_2}C{O_3} \to CaC{O_3} + 2NaOH
\end{array}\)
