Arrange the following:
`NaH, MgH_(2)` and `H_(2)O` in order of increasing reducing property.

Explanation

To arrange the compounds NaH, MgH₂, and H₂O in order of increasing reducing property, we will analyze the reducing properties of each compound based on their ability to lose hydride ions (H⁻).

### Step-by-Step Solution:

1. **Understanding Reducing Agents**:
A reducing agent is a substance that donates electrons or hydride ions to another substance, thereby reducing it while being oxidized itself. The strength of a reducing agent depends on how easily it can lose its hydride ion.

2. **Analyzing NaH (Sodium Hydride)**:
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