Metals like _____, _____ and give `H_2` with steam. (iron, magnesium, aluminium, sodium, calcium)

Explanation

To answer the question about which metals react with steam to produce hydrogen gas, we can analyze the metals listed: iron, magnesium, aluminum, sodium, and calcium.

### Step-by-Step Solution:

1. **Understanding the Reaction with Water**:
- Some metals react with water to produce hydrogen gas. The reactivity of metals with water varies.
- Sodium and potassium react violently with cold water, but they are not the focus here.

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