Magnesium metal is treated with dilute hydrochloric acid
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Magnesium reacts with hydrochloric acid according to the equation: Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas.
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Mg + 2HCl ➡️ MgCl2 + H2
It is bcoz when metal react with an acid it release hydrogen gas with a pop sound and form a corresponding salt.
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