CH104: Chapter 4 - Covalent Bonds and Molecular Compounds - Chemistry - Free Printable

The task involves matching chemical formulas with their corresponding names. Let's analyze each entry in the table and verify the correctness of the naming based on the rules of chemical nomenclature.

Step-by-Step Analysis:

#### 1. NO
- Formula: NO
- Name: nitrogen monoxide

Explanation:
- The formula "NO" indicates one nitrogen (N) atom and one oxygen (O) atom.
- In naming binary compounds, the first element is named as is, and the second element is named with an "-ide" suffix.
- The prefix "mono-" is used for the second element when there is only one atom of it, but it is often omitted for simplicity in common usage.
- Therefore, "NO" is correctly named as nitrogen monoxide (or simply nitric oxide).

#### 2. N₂O
- Formula: N₂O
- Name: dinitrogen monoxide

Explanation:
- The formula "N₂O" indicates two nitrogen (N) atoms and one oxygen (O) atom.
- The prefix "di-" is used for the first element (nitrogen) because there are two atoms of it.
- The prefix "mono-" is used for the second element (oxygen) because there is only one atom of it.
- Therefore, "N₂O" is correctly named as dinitrogen monoxide.

#### 3. S₂Cl₂
- Formula: S₂Cl₂
- Name: disulfur dichloride

Explanation:
- The formula "S₂Cl₂" indicates two sulfur (S) atoms and two chlorine (Cl) atoms.
- The prefix "di-" is used for both elements because there are two atoms of each.
- Therefore, "S₂Cl₂" is correctly named as disulfur dichloride.

#### 4. Cl₂O₇
- Formula: Cl₂O₇
- Name: dichlorine heptoxide

Explanation:
- The formula "Cl₂O₇" indicates two chlorine (Cl) atoms and seven oxygen (O) atoms.
- The prefix "di-" is used for the first element (chlorine) because there are two atoms of it.
- The prefix "hepto-" is used for the second element (oxygen) because there are seven atoms of it.
- Therefore, "Cl₂O₇" is correctly named as dichlorine heptoxide.

Final Answer:

All the names in the table are correct based on the rules of chemical nomenclature.

$$
\boxed{\text{All names are correct.}}
$$