Give two examples of molecules containing coordinate bond.

Explanation

To answer the question about molecules containing a coordinate bond, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Coordinate Bonds**:
- A coordinate bond (also known as a dative bond) is a type of covalent bond where one atom provides both electrons for the bond. This differs from a standard covalent bond, where each atom contributes one electron.

2. **Example 1: Ammonium Ion (NH₄⁺)**:
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