What are the conjugate bases of the following ?
`CH_(3)OH, HN_(3), [Al(H_(2)O)_(6)]^(3+)`.

Explanation

To determine the conjugate bases of the given compounds, we need to understand the concept of conjugate acid-base pairs. A conjugate base is formed when an acid donates a proton (H⁺).

Let's analyze each compound step by step:

### Step 1: Identify the conjugate base of CH₃OH (methanol)
- **Identify the acid**: CH₃OH can act as an acid.
- **Remove a proton (H⁺)**: When we remove one proton from CH₃OH, we get CH₃O⁻ (methoxide ion).
- **Conjugate base**: Therefore, the conjugate base of CH₃OH is **CH₃O⁻**.
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