Answer the following questions in one word or one sentence:
Is sodium hydroxide an acid or a base?

Explanation

**Step-by-Step Solution:**

1. **Identify the Chemical Formula**: Sodium hydroxide is represented by the chemical formula NaOH.

2. **Dissolution in Water**: When sodium hydroxide is dissolved in water, it dissociates into sodium ions (Na⁺) and hydroxide ions (OH⁻).

3. **Understanding Ionization**: The presence of hydroxide ions (OH⁻) in a solution indicates that the solution is basic.

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