$$ Mg + HCl \rightarrow MgCl _ { 2 } + H $$

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The balanced chemical equation for the reaction between magnesium and hydrochloric acid is $$ Mg + 2HCl \rightarrow MgCl_2 + H_2 $$. This is a single displacement reaction. The reaction you've written is a chemical reaction between magnesium (Mg) and hydrochloric acid (HCl). However, the products you've listed are not balanced correctly. The correct balanced equation for the reaction is: $$ Mg + 2HCl \rightarrow MgCl_2 + H_2 $$ ### Explanation: 1. **Reactants**: - Magnesium (Mg) is a metal. - Hydrochloric acid (HCl) is a strong acid. 2. **Products**: - Magnesium chloride (MgCl₂) is formed as a salt. - Hydrogen gas (H₂) is released. ### Balancing the Equation: - On the left side, you have 1 magnesium atom and 2 chlorine atoms (from 2 HCl). - On the right side, you have 1 magnesium atom, 2 chlorine atoms (from MgCl₂), and 2 hydrogen atoms (from H₂). - To balance the hydrogen, you need 2 HCl to produce 1 H₂. Thus, the balanced equation is: $$ Mg + 2HCl \rightarrow MgCl_2 + H_2 $$ This reaction is an example of a single displacement reaction where magnesium displaces hydrogen from hydrochloric acid.

\( Mg + HCl \rightarrow MgCl _ { 2 } + H \)

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\( Mg + HCl \rightarrow MgCl _ { 2 } + H \)

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