State the equilibrium constant expression in terms of
State the equilibrium constant expression in terms of reactant as well as product concentrations for the following reactions
1. 2 H2O2 (aq) <--> 2 H2O (aq) + O2 (aq)
2. PCl3 (aq) + Cl2 (g) <--> PCl5 (aq)
3. H2 (g) + S(s) <--> H2S (aq)
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