A. Naming Chemical Compounds Data Table
B. Binary Molecular and logic Compound Names Formula B20 N20 Molecular or logic Compound? Compound Name Buff Abler H,O, 14 15 17 18 19 Xe Data Table
C. Binary Molecular and logic Compound Formulas Molecular or logic Compound? Formula Tribromine octoxide Lithium selenite iodine monochloride Nitrogen monoxide Iron(lie) sulphide Hydrogen chloride Tiburon hex hydride Barium iodide
The Correct Answer and Explanation is:
A. Naming Chemical Compounds Data Table
| Formula | Molecular or Ionic Compound? | Compound Name |
|---|---|---|
| H₂O | Molecular | Dihydrogen monoxide (Water) |
| Xe | Element (not compound) | Xenon |
| N₂O | Molecular | Dinitrogen monoxide |
| B₂O₃ | Molecular | Diboron trioxide |
B. Binary Molecular and Ionic Compound Names to Formulas
| Compound Name | Molecular or Ionic? | Formula |
|---|---|---|
| Tribromine octoxide | Molecular | Br₃O₈ |
| Lithium selenite | Ionic | Li₂SeO₃ |
| Iodine monochloride | Molecular | ICl |
| Nitrogen monoxide | Molecular | NO |
| Iron(III) sulfide | Ionic | Fe₂S₃ |
| Hydrogen chloride | Molecular (gas) | HCl |
| Triboron hexahydride | Molecular | B₃H₆ |
| Barium iodide | Ionic | BaI₂ |
Explanation
Chemical compound names follow standardized rules to distinguish between ionic and molecular (covalent) compounds. The key difference lies in the types of elements involved:
Ionic compounds consist of a metal and a nonmetal (or polyatomic ions). Naming starts with the metal, followed by the nonmetal with an “-ide” suffix. If the metal has variable charges (transition metals), Roman numerals indicate the charge (e.g., Iron(III) sulfide → Fe³⁺ and S²⁻, forming Fe₂S₃). For polyatomic ions like selenite (SeO₃²⁻), the name of the ion remains unchanged (e.g., lithium selenite → Li₂SeO₃).
Molecular compounds consist of nonmetals only, and prefixes indicate the number of atoms: mono-, di-, tri-, tetra-, penta-, etc. For example, N₂O is “dinitrogen monoxide.” The first element drops the “mono-” prefix if there’s only one atom (e.g., CO is carbon monoxide, not monocarbon monoxide).
Certain compounds have common or trivial names (e.g., H₂O is water), though systematic names like dihydrogen monoxide also exist.
In some cases, compounds contain metalloids (e.g., boron), which often behave like nonmetals in covalent bonding. Thus, compounds like B₂O₃ are molecular and named using prefixes.
Correct naming ensures clear communication in science, medicine, and industry. Mistakes in chemical names or formulas can lead to dangerous consequences in labs and manufacturing, which is why precise nomenclature is essential in chemistry.
