Write the equations for the reaction of ethyne with hydrogen

Explanation

To write the equations for the reaction of ethyne (C2H2) with hydrogen (H2), we will follow these steps:

### Step 1: Write the structure of ethyne
Ethyne, also known as acetylene, has the molecular formula C2H2 and its structure can be represented as:
\[ \text{HC} \equiv \text{CH} \]

### Step 2: Identify the reaction type
The reaction of ethyne with hydrogen is a hydrogenation reaction, which involves the addition of hydrogen across the triple bond of ethyne.
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