What happens when (give balanced equations):
Ethene reacts with chlorine.

Explanation

To determine what happens when ethene reacts with chlorine, we can follow these steps to derive the balanced chemical equation.

### Step 1: Write the chemical formula for ethene.
Ethene is an alkene with the formula \( C_2H_4 \). It has a double bond between the two carbon atoms.

### Step 2: Write the chemical formula for chlorine.
Chlorine is a diatomic molecule, represented as \( Cl_2 \).

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