Binary compounds worksheet displaying chemical formulas and their corresponding names for learning and practice.

To solve this worksheet, we need to convert between chemical formulas and their corresponding names. This involves understanding two main types of naming rules:

1. Ionic Compounds (Metal + Non-metal): Usually, the metal keeps its name, and the non-metal ends in "-ide." We don't usually use prefixes like "di-" or "tri-" for ionic compounds because the charges balance out automatically (e.g., Sodium Chloride, not Monosodium Monochloride).
2. Covalent Compounds (Non-metal + Non-metal): We use Greek prefixes to tell how many atoms there are (mono-, di-, tri-, tetra-, penta-, hexa-, etc.). The first element gets a prefix if there is more than one. The second element always gets a prefix and ends in "-ide."

Let's go through the list step-by-step.

Left Column: Formulas to Names

1. Al₂O₃: Aluminum (Al) and Oxygen (O). This is ionic. Name: aluminum oxide.
2. SiI₄: Silicon (Si) and Iodine (I). Both are non-metals, so it's covalent. We need "tetra-" for 4 iodines. Name: silicon tetraiodide.
3. AsF₃: Arsenic (As) and Fluorine (F). Covalent. "Tri-" for 3 fluorines. Name: arsenic trifluoride.
4. Cs₃N: Cesium (Cs) and Nitrogen (N). Ionic. Name: cesium nitride.
5. SiO₂: Silicon (Si) and Oxygen (O). Covalent. "Di-" for 2 oxygens. Name: silicon dioxide.
6. N₂O₅: Nitrogen (N) and Oxygen (O). Covalent. "Di-" for 2 nitrogens, "penta-" for 5 oxygens. Name: dinitrogen pentoxide.
7. LiCl: Lithium (Li) and Chlorine (Cl). Ionic. Name: lithium chloride.
8. B₂S₃: Boron (B) and Sulfur (S). Covalent. "Di-" for 2 borons, "tri-" for 3 sulfurs. Name: diboron trisulfide.
9. K₂O: Potassium (K) and Oxygen (O). Ionic. Name: potassium oxide.
10. PF₅: Phosphorus (P) and Fluorine (F). Covalent. "Penta-" for 5 fluorines. Name: phosphorus pentafluoride.
11. BeO: Beryllium (Be) and Oxygen (O). Ionic. Name: beryllium oxide.
12. SeCl₂: Selenium (Se) and Chlorine (Cl). Covalent. "Di-" for 2 chlorines. Name: selenium dichloride.
13. I₂O₇: Iodine (I) and Oxygen (O). Covalent. "Di-" for 2 iodines, "hepta-" for 7 oxygens. Name: diiodine heptoxide.
14. BaI₂: Barium (Ba) and Iodine (I). Ionic. Name: barium iodide.
15. MgS: Magnesium (Mg) and Sulfur (S). Ionic. Name: magnesium sulfide.
16. Na₃N: Sodium (Na) and Nitrogen (N). Ionic. Name: sodium nitride.
17. OF₂: Oxygen (O) and Fluorine (F). Covalent. "Di-" for 2 fluorines. Name: oxygen difluoride.

Right Column: Names to Formulas

* barium sulfide: Barium is Ba²⁺, Sulfur is S²⁻. Charges cancel. Formula: BaS.
* phosphorus triiodide: Phosphorus is P, Triiodide means 3 Iodines. Formula: PI₃.
* sulfur trioxide: Sulfur is S, Trioxide means 3 Oxygens. Formula: SO₃.
* aluminum selenide: Aluminum is Al³⁺, Selenium is Se²⁻. Swap charges (Al₂Se₃). Formula: Al₂Se₃.
* silicon disulfide: Silicon is Si, Disulfide means 2 Sulfurs. Formula: SiS₂.
* carbon dioxide: Carbon is C, Dioxide means 2 Oxygens. Formula: CO₂.
* sodium oxide: Sodium is Na⁺, Oxide is O²⁻. Need 2 Na for 1 O. Formula: Na₂O.
* carbon monoxide: Carbon is C, Monoxide means 1 Oxygen. Formula: CO.
* lithium fluoride: Lithium is Li⁺, Fluoride is F⁻. Charges cancel. Formula: LiF.
* boron trichloride: Boron is B, Trichloride means 3 Chlorines. Formula: BCl₃.
* lithium phosphide: Lithium is Li⁺, Phosphide is P³⁻. Need 3 Li for 1 P. Formula: Li₃P.
* diarsenic pentoxide: Diarsenic means 2 Arsenics (As), Pentoxide means 5 Oxygens. Formula: As₂O₅.
* aluminum oxide: Aluminum is Al³⁺, Oxide is O²⁻. Swap charges. Formula: Al₂O₃.
* strontium fluoride: Strontium is Sr²⁺, Fluoride is F⁻. Need 2 Fs for 1 Sr. Formula: SrF₂.
* potassium sulfide: Potassium is K⁺, Sulfide is S²⁻. Need 2 Ks for 1 S. Formula: K₂S.
* sodium sulfide: Sodium is Na⁺, Sulfide is S²⁻. Need 2 Ns for 1 S. Formula: Na₂S.
* cesium telluride: Cesium is Cs⁺, Telluride is Te²⁻. Need 2 Cs for 1 Te. Formula: Cs₂Te.

Final Answer:
Left Column (Formulas to Names):
1. aluminum oxide
2. silicon tetraiodide
3. arsenic trifluoride
4. cesium nitride
5. silicon dioxide
6. dinitrogen pentoxide
7. lithium chloride
8. diboron trisulfide
9. potassium oxide
10. phosphorus pentafluoride
11. beryllium oxide
12. selenium dichloride
13. diiodine heptoxide
14. barium iodide
15. magnesium sulfide
16. sodium nitride
17. oxygen difluoride

Right Column (Names to Formulas):
barium sulfide: BaS
phosphorus triiodide: PI₃
sulfur trioxide: SO₃
aluminum selenide: Al₂Se₃
silicon disulfide: SiS₂
carbon dioxide: CO₂
sodium oxide: Na₂O
carbon monoxide: CO
lithium fluoride: LiF
boron trichloride: BCl₃
lithium phosphide: Li₃P
diarsenic pentoxide: As₂O₅
aluminum oxide: Al₂O₃
strontium fluoride: SrF₂
potassium sulfide: K₂S
sodium sulfide: Na₂S
cesium telluride: Cs₂Te