Zinc shavings react faster with dilute hydrochloric acid that zinc metal why
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The metal zinc readily reacts with hydrochloric acid to produce hydrogen gas (H2) and zinc chloride (ZnCl2). Every chemical reaction either produces or absorbs heat. In chemistry this effect is described as the reaction enthalpy. ... The reagents are zinc and hydrochloric acid, and the sum is 0 + 2 * ( -167.2) = -334.3.
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