What happens when an acid reacts with a metal? Give the chemical equation of the reaction involved.

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Solution

When an acid reacts with a metal, then salt and hydrogen gas are formed.

$M e t a l + A c i d \to S a l t + H y d r o g e n g a s$

For example, when dilute hydrochloric acid reacts with zinc metal, then zinc chloride and hydrogen gas are formed. The chemical equation of the reaction involved is given below.

$Z n + 2 H C l \to Z n C l_{2} + H_{2}$

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