配平化学方程式C3H8+O2------CO2+H2O 用 归一法 C2H6+O2----CO2+H2O这个化学方程式如何配平?
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1.\u5148\u914d\u5e73\u78b3\u539f\u5b50C2H6+O2----2CO2+H2O2.\u518d\u914d\u5e73\u6c22\u539f\u5b50C2H6+O2----2CO2+3H2O3.\u518d\u914d\u5e73\u6c27\u539f\u5b50\uff0c\u53ef\u4ee5\u7528\u5206\u6570\u6765\u914d\u5e73C2H6+7/2O2----2CO2+3H2O4.\u5404\u7cfb\u6570\u4e58\u4ee52\uff0c\u53bb\u6389\u5206\u65702C2H6+7O2=4CO2+6H2O
C3H8+O2------CO2+H2O1,设最复杂的为1
所以C3H8前为1
1C3H8+O2------CO2+H2O
2,根据氢守恒,那么水前面是4
1C3H8+O2------CO2+4H2O
3,根据碳守恒,CO2 前是3
1C3H8+O2------3CO2+4H2O
4,根据氧守恒配平氧气前为5
1C3H8+5O2------3CO2+4H2O
5,正好配平,写上反应条件和写上箭头
C3H8+5O2---点燃---3CO2+4H2O
不懂问
2C2H2+5O2-----4CO2+2H2O
CH4+2O2----CO2+2H2O
C2H5OH+3O2--2CO2+3H2O
2CH3OH+2O2---2CO2+2H2O
C3H8+5O2=3CO2+4H2O
C3H8+5O2=3CO2+4H2O
1 .5 .3. 4
什么归一法?能配平就行了
绛旓細鐐圭噧 C3H8+5O2===4H2O+3CO2 (涓嶉渶瑕佸崌闄嶇鍙,鍥犱负涓嶆槸婧舵恫鍙嶅簲鐢熸垚鍥轰綋,鍙嶅簲鐗╀篃鏈夋皵浣)
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绛旓細C3H8+5O2---3CO2+4H2O 4FeS2+11O2=2Fe2O3+8SO2 Cu2(OH)2CO3=2CuO+H2O+CO2
绛旓細涓欑兎涓虹噧鏂 鎵浠鏂圭▼寮灏辨槸 C3H8 + O2 == CO2 + H2O 鐢佃В璐ㄦ槸铻嶈瀺鐨勭⒊閰哥洂锛屾彁渚涚殑鏄紙CO3锛2- O2 + CO2 + e- == 锛圕O3锛2- C3H8 + [锛圕O3锛2-] - e- == CO2 + H2O 浜ゆ祦浜ゆ祦 瀛︿範杩涙
绛旓細C3H8+5O2=3CO2+4H2O
绛旓細璐熸瀬:C3H8 - 20e- + 10o2- = 3CO2 + 4H20 姝f瀬: 5o2 +20e- = 10 O2- 鐢垫睜鎬诲弽搴旓細C3H8+5O2=3CO2+4H2O 涓欑兎鐕冩枡鐢垫睜鐨勭數瑙h川鏄啍铻嶇⒊閰哥洂锛屼笉鑳戒笌浜х墿CO2銆丠2O鍙戠敓鍙嶅簲銆傚啓鐕冩枡鐢垫睜鍙嶅簲锛屼竴鑸厛鍐欏嚭鐕冩枡鐕冪儳鐨鍖栧鏂圭▼寮锛屽啀鑰冭檻浜х墿涓庣數瑙h川鐨勫弽搴旓紝灏嗕簩鑰呭悎骞跺嵆涓虹數姹犲弽搴斿紡銆
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绛旓細锛1锛2銆2銆3 锛2锛夋槸C3H8,1銆5銆3銆4 锛3锛2銆3銆1銆3 锛4锛3銆2銆3銆1銆3 锛5锛1銆4銆3銆4
绛旓細姝f瀬: 5o2 +20e-+ 20H+ = 10H2O 鐢垫睜鎬诲弽搴旓細C3H8+5O2=3CO2+4H2O 纰辨э細璐熸瀬:C3H8 - 20 e- + 26OH- = 3CO32- + 17H2O 姝f瀬: 5O2 + 20 e- + 10H2O = 20OH- 鎬诲弽搴: C3H8 + 5O2 + 6OH- = 3CO32- + 7H2O 涓э細璐熸瀬锛5O2+20e-+10H2O=20OH- 姝f瀬锛欳3H8-20e-+6...