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16-02-2024
Chemistry

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Hydrochloric acid can dissolve solid iron according to the following reaction: Fe(s) + 2HCl(aq)→FeCl₂(aq) +H₂(g) How much HCl could dissolve a 2.8 g iron padlock? Express your answer as a number with correct sig figs only.

a) 0.8 g
b) 1.6 g
c) 3.2 g
d) 5.6 g

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