Give balanced equations for the following reactions :
Acetaldehyde is heated with hydroiodic acid in the presence of red phosphorous.

Explanation

To balance the equation for the reaction of acetaldehyde with hydroiodic acid in the presence of red phosphorus, we will follow these steps:

### Step 1: Write the unbalanced equation
The reactants are acetaldehyde (C₂H₄O) and hydroiodic acid (HI). The products will be ethane (C₂H₆), water (H₂O), and iodine (I₂). The unbalanced equation is:
\[ \text{C}_2\text{H}_4\text{O} + \text{HI} \rightarrow \text{C}_2\text{H}_6 + \text{H}_2\text{O} + \text{I}_2 \]

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