Let's analyze the reaction you've provided:
HI + H2O → Cl + HgO
It appears there might be some confusion regarding the way the reaction is presented. There is no direct reference to HCl, and it seems there's a typographical error in the compounds presented.
However, assuming the context that HI is an acid and H2O is acting as a base, we can analyze the statements provided:
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H2O is an acid, and Cl- is its conjugate base. - This is incorrect. Water (H2O) is typically acting as a base in this context, and Cl- is not derived from H2O.
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HCl is an acid, and Cl- is its conjugate base. - This is incorrect in terms of the reaction provided because HCl is not depicted in the reaction; also, Cl- would not be the conjugate base of an acid in the context of your reaction.
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H2O is an acid, and H2Ot is its conjugate base. - This is incorrect since H2Ot should not exist as a descriptor.
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HCl is an acid, and HgOt is its conjugate base. - This is incorrect since HgOt isn't a recognized conjugate base of an acid.
After analyzing the statement options based on standard acid-base theory, none of the statements seem logically correct.
If you can provide clarification on the components of the reaction or if there's a specific context under which to analyze this reaction, I can offer a better response!