Write two properties of alkali metals salts of oxo-acids.

Explanation

To answer the question about the properties of alkali metal salts of oxo-acids, we can summarize the information as follows:

### Step-by-Step Solution:

1. **Definition of Alkali Metal Salts of Oxo-Acids**:
- Alkali metal salts of oxo-acids are formed when alkali metals (Group 1 elements) react with oxo-acids. Oxo-acids are acids that contain oxygen, hydrogen, and another element, where the acidic proton is attached to a hydroxyl group (–OH).

2. **Property 1: Stability of Carbonates**:
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