Write balanced chemical equation and name the main product in each case when hydrochloric acid reacts with the following:
Magnesium

Explanation

To write the balanced chemical equation for the reaction between hydrochloric acid (HCl) and magnesium (Mg), and to identify the main product, follow these steps:

### Step 1: Identify the reactants
The reactants in this reaction are magnesium (Mg) and hydrochloric acid (HCl).

### Step 2: Write the unbalanced equation
The unbalanced equation for the reaction is:
\[ \text{Mg} + \text{HCl} \rightarrow \text{MgCl}_2 + \text{H}_2 \]
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