Is the reaction of hydronium and thisulfate an acid-base reaction? [closed]








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Is this reaction 
$$\ce{2H3O^{+}(aq) + S\_{2}O\_{3}^{2−}{(aq)} -> 3H\_{2}O(l) + SO\_{2}(g) + 1/8S8(s)}
$$
an acid-base reaction?




It starts with the protonation of the anion, so that part is acid-base, but then it continues as a redox reaction.


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