Cl2+NaOH-NaCl+NaClO3+H2O条件为加热怎么配平它,

问题描述:

Cl2+NaOH-NaCl+NaClO3+H2O条件为加热
怎么配平它,

可以这样“理解”
Cl2+H2O=HCl+HClO
HCl+NaOH=NaCl+H2O
HClO+NaOH=NaClO+H2O
总反应方程式为
Cl2 + 2NaOH = NaCl + NaClO + H2O
加热的同理
可以先3Cl2+3H2O=5HCl+HClO3
5HCl+5NaOH=5NaCl+5H2O
HClO3+NaOH=NaClO3+H2O
总反应方程式为
3Cl2 + 6NaOH = 5NaCl + NaClO3 + 3H2O
3Cl2+3H2O=5HCl+HClO3 Cl降一升五,HCl前5,总6配平即可

3Cl2+6NaOH=5NaCl+NaClO3+3H2O,H较少,先配H

3 Cl2+6 NaOH = 5 NaCl+NaClO3+3 H2OCl:0 → -1; Cl:0 → +5所以 NaCl配5,NaClO3配1,Cl2配3:3 Cl2+NaOH —— 5 NaCl+NaClO3+H2O然后配平 NaOH、H2O:3 Cl2+6 NaOH = 5 NaCl+NaClO3+3 H2O

3CL2+6NAOH加热=5NACL+NACLO3++3H2O