Complete the following reactions :
`H_(2)(g)+M_(m)O_(o)(s)overset(Delta)to`

Explanation

To complete the reaction \( H_2(g) + M_mO_o(s) \overset{\Delta}{\rightarrow} \), we need to analyze the reactants and predict the products.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- We have hydrogen gas \( H_2 \) and a metal oxide \( M_mO_o \), where \( M \) is a metal, \( m \) is the number of metal atoms, and \( O \) is the number of oxygen atoms.

2. **Understand the Reaction**:
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