Arrange the following in order of decreasing acidic strength:
`H_(2)O, CH_(3)OH`, butan-1-ol, butan-2-ol, and 2-methylpropan 2-ol.

Explanation

To arrange the compounds in order of decreasing acidic strength, we need to analyze the stability of the resulting anions after the release of a proton (H⁺) from each compound. The more stable the anion, the stronger the acid.

### Step-by-Step Solution:

1. **Identify the Compounds**: We have the following compounds to consider:
- Water (H₂O)
- Methanol (CH₃OH)
- Butan-1-ol (C₄H₉OH)
...