Sort out the Lewis acids and Lewis bases among the following:
` Cl^(-) , BCl_3, SO_2 , OH^(-) , Fe^(3+) , SnCl_4,Ni , CH_3OH, NH_3?`

Explanation

To sort out the Lewis acids and Lewis bases from the given compounds, we need to understand the definitions of Lewis acids and Lewis bases:

- **Lewis Acid**: A substance that can accept a pair of electrons (electron-deficient).
- **Lewis Base**: A substance that can donate a pair of electrons (electron-rich).

Now, let's analyze each of the given compounds:

1. **Cl^(-)**:
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