[Hóa 9]cân bằng phương trình

N

ngoclong2805

2Fe + 6H2SO4 >>> Fe2(SO4)3 + 3SO2 + 6H2O...................................................................................................................................................................................................................................................
 
V

vy000

Bảo toàn e:

$Fe + H_2SO_4 \rightarrow Fe_2(SO_4)_3+H_2O+SO_2$

$Fe \rightarrow Fe^{3+}+3e$}x2
$S^{6+} +2e \rightarrow S^{4+}$}x3

$\Rightarrow$ cân bằng :

$2Fe+6H_2SO_4 \rightarrow Fe_2(SO_4)_3 +6H_2O + 3SO_2$
 
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