Metals that react with steam to form metal oxides.

Answer

To answer the question about metals that react with steam to form metal oxides, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- Metals can react with steam (water in its gaseous form) to produce metal oxides and hydrogen gas. This is different from reacting with liquid water.

2. **Identifying the Metals**:
- Some common metals that react with steam include:
- **Aluminum (Al)**
- **Iron (Fe)**
- **Zinc (Zn)**

3. **Chemical Reactions**:
- **Aluminum Reaction**:
- When aluminum reacts with steam, the reaction can be represented as:
\[ 2Al + 3H_2O(g) \rightarrow Al_2O_3 + 3H_2(g) \]
- This shows that aluminum oxide (Al₂O₃) and hydrogen gas (H₂) are formed.

- **Iron Reaction**:
- The reaction of iron with steam is:
\[ 3Fe + 4H_2O(g) \rightarrow Fe_3O_4 + 4H_2(g) \]
- Here, iron(II,III) oxide (Fe₃O₄) and hydrogen gas (H₂) are produced.

- **Zinc Reaction**:
- Zinc reacts with steam as follows:
\[ Zn + H_2O(g) \rightarrow ZnO + H_2(g) \]
- This results in zinc oxide (ZnO) and hydrogen gas (H₂).

4. **Conclusion**:
- The metals that react with steam to form metal oxides include aluminum, iron, and zinc. Each of these reactions produces a corresponding metal oxide and hydrogen gas.

### Summary of Key Points:
- Metals like aluminum, iron, and zinc can react with steam.
- The reactions produce metal oxides and hydrogen gas.