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Chlorine is prepared in the laboratory b...

Chlorine is prepared in the laboratory by treating manganase dioxide(`MnO_2`) with aqueous hydrochloric acid according to the reaction,
`4HCl(aq)+MnO_2(s) to 2H_2O(l)+MnCl_2(aq)+Cl_2(g). How many grams of HCl react with 5.0 g of manganese dioxide?

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