化学方程式用归一法配平的具体步骤？急！ 化学方程式配平中的归一法
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\u4f8b\uff1a\u914d\u5e73FeS2 + O2 ____ Fe 2O3 +SO2
\u4ee4FeS2\u7684\u7cfb\u6570\u4e3a1, O2\u7684\u7cfb\u6570\u4e3ax\uff0cFe 2O3 \u7684\u7cfb\u6570\u4e3ay\uff0cSO2 \u7684\u7cfb\u6570\u4e3az\uff0c
1FeS2 +x O2 ____ y Fe 2O3 +z SO2
\u5de6\u8fb9=\u53f3\u8fb9
Fe :1=2y
S : 1\u00d72=z
O :2x =3y +2z
\u89e3\u4e4b\uff0c\u5f97x=11/4,y =1/2,z=2
\u4ee3\u5165\u65b9\u7a0b\u5e76\u53bb\u5206\u6bcd\uff0c\u5f97 4FeS2 +11 O2 ==== 2Fe 2O3 +8 SO2
\u4f8b\uff1a\u914d\u5e73 (NH4)2SO4 _______ NH3\u2191+SO2\u2191+N2\u2191+H2O
SO2\u7684\u7cfb\u6570\u4e3ay\uff0cN2\u7684\u7cfb\u6570\u4e3az\uff0cSO2\u7684\u7cfb\u6570\u4e3ay\uff0cN2\u7684\u7cfb\u6570\u4e3az\uff0c
\u4ee4(NH4)2SO4\u7684\u7cfb\u6570\u4e3a1\uff0cNH3\u7684\u7cfb\u6570\u4e3ax\uff0cSO2\u7684\u7cfb\u6570\u4e3ay\uff0cN2\u7684\u7cfb\u6570\u4e3az\uff0cH2O\u7684\u7cfb\u6570\u4e3ap
1(NH4)2SO4 _______ xNH3\u2191+ySO2\u2191+zN2\u2191+pH2O
\u5de6\u8fb9=\u53f3\u8fb9
N\uff1a1\u00d72=x+2z
H\uff1a4\u00d72=3x+2p
S\uff1a1=y
O\uff1a4=2y+p
\u89e3\u4e4b\uff0c\u5f97x=4/3,y=1,z=1/3,p=2
\u4ee3\u5165\u65b9\u7a0b\u5e76\u53bb\u5206\u6bcd\uff0c\u5f97
3(NH4)2SO4 ==== 4NH3\u2191+3SO2\u2191+N2\u2191+6H2O
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望采纳~~~O(∩_∩)O谢谢
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