When sodium is treated with sufficient oxygen/air, the product obtained is

Options

A. `NaO`
B. `Na_(2)O`
C. `Na_(2)O_(2)`
D. `NaO_(2)`

Explanation

To determine the product obtained when sodium is treated with sufficient oxygen or air, we can follow these steps:

### Step 1: Understand Sodium's Reaction with Oxygen
Sodium (Na) is an alkali metal that reacts with oxygen. The nature of the product formed depends on the amount of oxygen available during the reaction.

**Hint:** Recall that the amount of oxygen influences the type of oxide formed.

### Step 2: Identify the Products Based on Oxygen Availability
- **Limited Oxygen:** When sodium reacts with a limited supply of oxygen, it forms sodium oxide (Na2O).
- **Sufficient Oxygen:** When sodium reacts with an excess of oxygen, it forms sodium peroxide (Na2O2).

**Hint:** Think about how the reaction changes with varying amounts of oxygen.

### Step 3: Write the Chemical Reaction for Sufficient Oxygen
When sodium is treated with sufficient oxygen, the balanced chemical reaction can be represented as:
\[ 4 \text{Na} + \text{O}_2 \rightarrow 2 \text{Na}_2\text{O}_2 \]
This indicates that sodium peroxide is formed.

**Hint:** Balancing the equation helps to understand the stoichiometry of the reaction.

### Step 4: Conclusion
Since the question specifies that sodium is treated with sufficient oxygen or air, the product obtained is sodium peroxide (Na2O2).

**Final Answer:** The product obtained is sodium peroxide (Na2O2).

---