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Zinc metal reacts with dilute hydrochloric acid to form in Chloride and liberate hydrogen gas

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Solution

Dear Student,
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 zinc reaction produces the heat and hence has the negative enthalpy.
The reaction is as follows:
Zn + 2HCl →ZnCl₂ + H_2

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