Complete and balance the chemical equation:
_____ `to C_2H_4 + H_2O`

Explanation

To complete and balance the chemical equation for the dehydration of ethanol to form ethene and water, follow these steps:

### Step 1: Identify the Reactants and Products
The reactant in this reaction is ethanol (C₂H₅OH), and the products are ethene (C₂H₄) and water (H₂O).

### Step 2: Write the Unbalanced Equation
The unbalanced equation can be written as:
\[ \text{C}_2\text{H}_5\text{OH} \rightarrow \text{C}_2\text{H}_4 + \text{H}_2\text{O} \]
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