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Kc values respectively for the reactions...

`K_c` values respectively for the reactions, `H_2SO_3 leftrightarrow H^+ +HSO_3^(-) and HSO_3^(-) leftrightarrow H^+ +SO_3^(2-) and 2 times 10^-2 and 6 times 10^-8 mol L^-1` Calculate the `K_c` for the reaction `H_2SO_3 leftrightarrow 2H^+ + SO_3^(2-)`

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`1.09 xx 10^(-9)`
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