Calculate the mass of iron which will be converted into its oxide by the reaction of `18 g` of steam.

Explanation

To calculate the mass of iron that will be converted into its oxide by the reaction of 18 g of steam, we can follow these steps:

### Step 1: Write the balanced chemical equation
The reaction between iron (Fe) and steam (H2O) can be represented as:
\[ 3 \text{Fe} + 4 \text{H}_2\text{O} \rightarrow \text{Fe}_3\text{O}_4 + 4 \text{H}_2 \]

### Step 2: Determine the mole ratio
From the balanced equation, we see that:
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