Question

cân bằng

ZnSO4+H2O-->Zn+H2SO4+O2

NaCl+H2O-->NaOH+H2+Cl2

MnO2+HCL-->MnCl2+Cl2+H2O

Fe(OH)2+O2+H2O-->Fe(OH)3

CnH2n+O2+CO2+H2O

Answer 1

$ZnSO_4 + H_2O \xrightarrow{dpdd} Zn + H_2SO_4 + \dfrac{1}{2}O_2$
$2NaCl + 2H_2O \xrightarrow{dpdd} 2NaOH + H_2 + Cl_2$
$MnO_2 + 4HCl \to MnCl_2 + Cl_2 + 2H_2O$
$4Fe(OH)_2 + O_2 + 2H_2O \to 4Fe(OH)_3$

$C_nH_{2n} + \dfrac{3n}{2}O_2 \xrightarrow{t^o} nCO_2 + nH_2O$