第1个回答 2008-12-31
"第三章 金属及其化合物-1-碱金属 Na (活泼)"
1,"钠露置空气中变暗","4Na+O2 = 2Na2O"
2,"钠的燃烧","2Na+O2 Na2O2 (淡黄色)"
3,"钠投入水中","2Na+2H2O=2NaOH+H2↑ "
4,"钠投入硫酸铜溶液中","2Na+2H2O+CuSO4=Na2SO4+Cu(OH)2↓+H2↑ "
5,"氧化钠的化学性质","Na2O+H2O==2NaOH"
,,"Na2O+CO2==Na2CO3"
6,"过氧化钠的化学性质(强氧化性)","2Na2O2+2H2O==4NaOH+O2↑"
,,"2Na2O2+2CO2=2Na2CO3+O2"
,,"Na2O2+SO2==Na2SO4"
7,"碳酸钠的性质","Na2CO3 +CO2+ H2O=2NaHCO3"
,,"Na2CO3+2HCl = 2NaCl+CO2↑+ H2O"
8,"碳酸氢钠与酸,碱反应,不稳定性","NaHCO3+ HCl = NaCl+ CO2↑+ H2O"
,,"NaHCO3+ NaOH = Na2CO3 + H2O"
,,"2NaHCO3 Na2CO3 +CO2↑+ H2O"
9,"焰色反应操作步骤 ","先要灼烧铂丝成无色,做完一种离子的鉴别后,要用盐酸洗,再灼烧至无色,再检验第二种离子."
10,"钠,钾的焰色","钠:黄色 钾:紫色(透过蓝色钴玻璃观察)"
"第三章 金属及其化合物-2-金属铝 Al (两性)"
1,"铝的性质(强还原性,与酸,碱反应都放H2)","2Al + Fe2O3 2NaAlO2 + 3H2↑"
,,"2Al + 6HCl =2AlCl3 + 3H2↑"
,,"2Al + 2NaOH + 2H2O = 2NaAlO2 + 3H2↑ "
2,"氧化铝的性质(两性,与酸,碱反应生成盐和水)","Al2O3 + 6HCl =2AlCl3 + 3H2O"
,,"Al2O3 + 2NaOH = 2NaAlO2 + H2O "
3,"氢氧化铝的性质(两性,与酸,碱反应生成盐和水)","Al(OH)3 + 3HCl =AlCl3 + 3H2O"
,,"Al(OH)3 + NaOH = NaAlO2 + H2O "
4,"硫酸铝与氨水","Al2(SO4)3+6NH3·H2O=2Al(OH)3↓+3(NH4)2SO4"
5,"氢氧化铝受热分解","2Al(OH)3 Al2O3+3H2O"
"第三章 金属及其化合物-3-金属铁 Fe(变价)"
1,"铁在氧气中燃烧","3Fe+2O2 Fe3O4"
2,"铁与硫 ","Fe+S FeS"
3,"铁与氯气 ","2Fe+3Cl2 2FeCl3"
4,"红热的铁与水蒸气","3Fe+4H2O(g) Fe3O4+4H2↑"
5,"用铁湿法制铜","Fe + CuSO4 = FeSO4+Cu"
6,"氧化亚铁与盐酸","FeO +2HCl = FeCl2 +H2O"
7,"氧化铁与盐酸","Fe2O3 +6HCl = 2 FeCl3+3H2O"
8,"Fe(OH)3制取","FeCl3+3NaOH===Fe(OH)3↓+3NaCl"
9,"Fe(OH)2制取","FeSO4 +2NaOH = Fe(OH)2↓+2H2O"
10,"置露空气中","4Fe(OH)2+O2+2H2O=4Fe(OH)3"
11,"氢氧化铁的不稳定性","2Fe(OH)3 Fe2O3+3H2O"
12,"铜与氯化铁溶液","Cu+2FeCl3=CuCl2+2FeCl2(雕刻铜线路版)"
13,"氯化亚铁中通氯气","2FeCl2+Cl2=2FeCl3"
14,"三价铁遇硫氰化钾 ","Fe3++3SCN-=Fe(SCN)3 (红色)"
15,"赤铁矿炼铁","Fe2O3 +3CO 2 Fe+3CO2"