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Taking the example of the reaction K(2...

Taking the example of the reaction
`K_(2)Cr_(2)O_(7)+H_(2)SO_(4)+FeSO_(4)toK_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+Fe_(2)(SO_(4))_(3)+H_(2)O,`
explain how a redox reaction is balanced by oxidation number method.

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In the chemical reaction, K_(2)Cr_(2)O_(7)+xH_(2)SO_(4)+ySO_(2)rarrK_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+zH_(2)O x,y, and z are

The conversion of K_(2)Cr_(2)O_(7) into Cr_(2)(SO_(4))_(3) is

Balance the equations given below : K_2Cr_2O_7 + H_2SO_4 +SO_2 to K_2SO_4 + Cr_2(SO_4)_3 + H_2O

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

FeS+KMnO_(4)+H_(2)SO_(4)rarr Fe_(2)(SO_(4))_(3)+K_(2)SO_(4) . The equivalent mass FeS in the above reaction is :

H_(4)underline(S_(2))O_(6)+H_(2)O to H_(2)SO_(3)+H_(2)SO_(4)

H_(4)underline(S_(2))O_(6)+H_(2)O to H_(2)SO_(3)+H_(2)SO_(4)

K_(2)Cr_(2)O_(7)+C_(2)O_(4)^(2-)+H_(2)SO_(4)rarr K_(2)SO_(4)+CO_(2)+Cr_(2)(SO_(4))_(3)+H_(2)O In above reaction, identify the elements which do not undergo change in their oxidation state :