Distinguish between the following pairs . Justify.
`3O_(2) " and " 2O_(3), 3O" and " O_(3)`

Explanation

To distinguish between the pairs 3O2 and 2O3, and 3O and O3, we will analyze each term in the pairs step by step.

### Step 1: Understanding 3O2
- **3O2** means three molecules of oxygen gas.
- The formula O2 indicates that each molecule of oxygen is made up of two oxygen atoms.
- Therefore, 3O2 represents a total of \(3 \times 2 = 6\) oxygen atoms.

### Step 2: Understanding 2O3
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