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Which concentration of hydrochloric acid would MOST LIKELY react with a zinc metal strip at the fastest rate?
A. 10%
B. 20%
C. 30%
D. 40%

Respuesta :

answer D. because more the acidic or concentrate HCl , faster the reaction with Zn

The reaction is Zn + 2HCl -> ZnCl2 + H2

Its reaction rate will go up with more HCl as in a higher concentration. So the answer is D. 40%

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