金属铁的方程式整理
1. 铁与硫:____________________________________;
Fe S==(加热)FeS Q
2. 铁与碘:______________________________________;
Fe I2==(加热)FeI2 Fe和Cl2点燃只能生成FeCl3
3. 铁与氧气:_____________________________________;
3Fe 2O2==(点燃)Fe3O4
4. 铁与高温水蒸气:_______________________________________;
3Fe 4H2O==(高温)Fe3O4 4H2
5. 铁与非氧化性酸:_______________________________________;
Fe 2HCl==FeCl2 H2↑
6. 铁与足量稀硝酸:_______________________________________________;
Fe 4HNO3==Fe(NO3)3 NO↑ 2H2O
7. 过量铁与稀硝酸:_______________________________________________;
3Fe 8HNO3==3Fe(NO3)2 2NO↑ 4H2O
6和7不同的原因是:_____________________________________________;
2Fe(NO3)3 Fe==3Fe(NO3)2
8. 铁与硫酸铜:_______________________________________________;
Fe CuSO4==FeSO4 Cu
9. 铁与氯化铁:_______________________________________________;
Fe 2FeCl3==3FeCl2
10. 氧化亚铁溶于盐酸:_______________________________________________;
FeO 2HCl==FeCl2 H2O
11. 氧化铁溶于盐酸:_______________________________________________;
Fe2O3 6HCl==2FeCl3 3H2O
12. 四氧化三铁溶于盐酸:_______________________________________________;
Fe3O4 8HCl==2FeCl3 FeCl2 4H2O
13. 氢氧化铁溶于盐酸:____________________________________________;
Fe(OH)3 3HCl==FeCl3 3H2O
14. 氢氧化铁受热分解:____________________________________________;
2Fe(OH)3==(加热)Fe2O3 3H2O
15. 氯化铁与氢氧化钠溶液:_______________________________________;
FeCl3 3NaOH==Fe(OH)3↓ 3NaCl
16. 氯化铁与氨水:_______________________________________________;
FeCl3 3NH3•H2O==Fe(OH)3↓ 3NH4Cl
17. 氯化铁与硫氰化钾溶液:____________________________________________;
FeCl3 3KSCN==Fe(SCN)3 3KCl
18. 氯化铁与碳酸钠溶液:___________________________________________;
2FeCl3 3Na2CO3 3H2O==2Fe(OH)3↓ 3CO2↑ 6NaCl
19. 氯化铁与碳酸氢钠溶液:______________________________________________;
FeCl3 3NaHCO3==Fe(OH)3↓ 3NaCl 3CO2↑
20. 氯化铁与铜:_______________________________________;
2FeCl3 Cu==2FeCl2 CuCl2
21. 氯化铁与硫化氢:___________________________________________;
2FeCl3 H2S==2FeCl2 2HCl S↓
22. 氯化铁与碘化钾溶液:________________________________________;
2FeCl3 2KI==2FeCl2 2KCl I2
23. 氯化铁与亚硫酸钠溶液:____________________________________________;
2FeCl3 Na2SO3 H2O==2FeCl2 2HCl Na2SO4
黄血盐:K4[Fe(CN)6];赤血盐:K3[Fe(CN)6];
普鲁士蓝:Fe4[Fe(CN)6]3;滕氏蓝:Fe3[Fe(CN)6]2;
24. 氯化亚铁与氢氧化钠溶液:____________________________________(两条)__;
FeCl2 2NaOH==Fe(OH)2↓ 2NaCl
4Fe(OH)2 O2 2H2O==4Fe(OH)3↓
现象:______________________________________________________________;
白色沉淀立刻变成灰绿色,慢慢变成红褐色沉淀 思考如何隔绝空气
25. 氯化亚铁与氯水(溴水):________________________________________________;
2Fe2 Cl2==2Fe3 2Cl—
26. 氯化亚铁与稀硝酸:______________________________________________________;
3Fe2 NO3— 4H ==3Fe3 NO↑ 2H2O
27. 氯化亚铁在酸性环境下被空气氧化:________________________________________;
4Fe2 O2 4H ==4Fe3 2H2O
28. 氯化亚铁在酸性环境下被过氧化氢氧化:_____________________________________;
2Fe2 H2O2 2H ==2Fe3 2H2O