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Answer the following questions:
   
Answer variants:
\(Mg\)(s) + \(2HCl\)(aq) → \(MgCl_2\)(aq) + \(H_2\)(g)
When a single element displaces another element in a compound, this is known as a displacement reaction.
\(Mg\)(s) + \(2HCl\)(aq) → \(MgCl_4\)(aq) + \(H_2\)(g)
A decomposition reaction is the conversion of one reactants react to form a product. Example: \(NH_4C\)l(s) → \(NH_3\)(g) + \(HC\)l(g)
   
1. Write a chemical equation when magnesium reacts with aqueous hydrochloric acid to form magnesium chloride and hydrogen.
   
 
2. Define the displacement reaction.