Describe the action of hydroiodic acid on diethyl ether.

Explanation

To describe the action of hydroiodic acid (HI) on diethyl ether (C2H5OC2H5), we can break down the reaction into several steps:

### Step 1: Protonation of Diethyl Ether
When diethyl ether is treated with hydroiodic acid, the ether oxygen atom (O) has a lone pair of electrons that can act as a nucleophile. The oxygen atom will attack the hydrogen ion (H+) from hydroiodic acid, leading to the formation of a protonated ether.

**Reaction:**
\[ C_2H_5OC_2H_5 + H^+ \rightarrow C_2H_5OH^+C_2H_5 \]

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