Give balanced equations to show the preparation of hydrogen by the following:
steam

Explanation

To prepare hydrogen gas using steam, we can follow a two-step process involving methane (CH₄) and carbon monoxide (CO). Here’s how we can write the balanced equations for these reactions:

### Step 1: Reaction of Methane with Steam
1. **Identify the reactants and products**: When methane reacts with steam at high temperatures, it produces carbon monoxide and hydrogen gas.
2. **Write the unbalanced equation**:
\[ \text{CH}_4(g) + \text{H}_2\text{O}(g) \rightarrow \text{CO}(g) + \text{H}_2(g) \]
...