进一步认识氧化还原反应-(4).ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,进一步认识氧化还原反应,高一化学组,孙凤安,下列反应哪些是氧化还原反应，哪些不是？,CuO+H,2,=Cu+H,2,O,2CuO+C=2Cu+CO,2,(3)CH,4,+2O,2,=CO,2,+2H,2,O,(4)C+H,2,O=H,2,+CO,(5)Fe,2,O,3,+3CO=2Fe+3CO,2,共同点是无化合价升降。,+2 -2 0 0 +1 -2,+2 -2 0 0 +4 -2,-4 +1 0 +4-2 +1 -2,0 +1-2 0 +2-2,+3 -2 +2-2 0 +4-2,+2 -1 +1 +4-2 +2 +4-2 +1 -1,+2 -1 +1 -2+1 +2 -2 +1 +1 -1,+1 -1 +1 -2 +1 +1 -1 +1 -2,(1)(2)(3)(4)(5),为氧化还原反应；,(6)(7)(8),为非氧化还原反应：,共同点是有化合价升降,。,2Na,Cl,2,=2NaCl,2H,2,O=2H,2,+O,2,Zn+H,2,SO,4,=ZnSO,4,+H,2,BaCl,2,+Na,2,CO,3,=BaCO,3,+2NaCl,(7),CuCl,2,+2NaOH=Cu(OH),2,+2NaCl,(8)HCl+NaOH=NaCl+H,2,O,NaCl,的形成过程,Na,Cl,失去,e-,失去,e-,后,得到,e-,后,Na,+,Cl ,-,Cl,-,Na,+,HCl,的形成过程,H Cl,H Cl,Fe,2,O,3,+3CO=2Fe+3CO,2,CH,4,+2O,2,=CO,2,+2H,2,O,SO,2,+2H,2,S=2H,2,O+3S,2Na,Cl,2,=,=,2NaCl,2H,2,O=,=,2H,2,+O,2,Zn+H,2,SO,4,=,=,ZnSO,4,+H,2,MnO,2,+4HCl,（浓）,=MnCl,2,+Cl,2,+2H,2,O,用双线桥表示下列氧化还原反应,点燃,高温,加热,点燃,通电,