The melting points and solubility in water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Explanation

### Step-by-Step Solution:

1. **Understanding Amino Acids**:
- Amino acids are organic compounds that serve as the building blocks of proteins. They contain both an amino group (-NH2) and a carboxyl group (-COOH).

2. **Formation of Zwitterions**:
- In solution, amino acids can exist as zwitterions. A zwitterion is a molecule that has both a positive and a negative charge, but is overall neutral. For example, the amino group can be protonated (NH3+) while the carboxyl group can be deprotonated (COO-).

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