List five phenomena that result from hydrogen bonding.

Explanation

To answer the question regarding five phenomena that result from hydrogen bonding, we can summarize the key points discussed in the video transcript and present them step by step.

### Step-by-Step Solution:

1. **Liquid State of HF**:
- Hydrogen fluoride (HF) exists as a liquid due to hydrogen bonding. The highly electronegative fluorine atom creates a dipole moment, where fluorine has a partial negative charge (δ-) and hydrogen has a partial positive charge (δ+). This leads to strong intermolecular attractions between HF molecules, forming a network that keeps them closer together, resulting in a liquid state rather than a gaseous state.

2. **High Specific Heat of Water**:
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