1 2 3 4
H2O F2 Br2 Cl2
5 6 7 8
CaO NaI H2 Na
方程式应该会写了吧
CaO+H2O2NaBr+I2
Br2+H2=点燃=2HBr
Br2+2Na=点燃=2NaBr
Cl2+H2=点燃=2HCl
Cl2+2Na=点燃=2NaCl
1 2 3 4
H2O F2 Br2 Cl2
5 6 7 8
CaO NaI H2 Na
方程式应该会写了吧
CaO+H2O2NaBr+I2
Br2+H2=点燃=2HBr
Br2+2Na=点燃=2NaBr
Cl2+H2=点燃=2HCl
Cl2+2Na=点燃=2NaCl