Question

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Worksheet 6 Nomenclature 2 Covalent compounds, Binary Acids Naming binary containing only two nonmetals(Covalent compounds) Basie rule: Name of first element plus name of second element with "ide." Use the prefixes below to indicate the number of atoms of each clement present. Prefix Number Number Prefix hexa mono hepta octa nona tetra deca penta Note: the prefix mono is often omitted from the first element. Example: CO CO2 NOs carbon monoxide carbon dioxide dinitrogen pentoxide Exercise: Name the following compounds: 4. SF 5. NO2 1. OF 2. XeF2 3. SO; 6. KrF

Answer 1

1. OF2 = Oxygen difluoride

2. XeF2 = Xenon difluoride

3. SO3 = Sulfur trioxide

4. SF6 = Sulfur hexafluoride

5. NO2 = Nitrogen dioxide

6. KrF4 = Krypton tetrafluoride

1. BF3 = Boron trifluoride, covalent

2. KCl = Potassium chloride, ionic

3. NiO = Nickel oxide, covalent

4. HCl (aq) = Hydrochloric acid, ionic acid

5. HCl (g) = Hydrogen chloride, ionic

6. CaO = Calcium oxide, ionic

7. PbS = Lead sulfide, ionic

8. FeCl2 = Ferrous chloride, ionic

9. Cr2S3 = Chromium sulfide (common name) or Dichromium trisulfide (not correct though), ionic

10. NiBr2 = Nickel bromide (common name) or Nickel dibromide (not correct though), ionic

11. NaF = Sodium fluoride, ionic

12. HBr (aq) = Hydrobromic acid, ionic acid

13. SiO2 = Silicon dioxide, covalent

14. CaF2 = Calcium fluoride (common name) or Calcium difluoride (not correct though), ionic

15. AlN = Aluminium nitride, covalent

16. H2S (g) = Hydrogen sulfide (common name) or Dihydrogen monosulfide (not correct though), covalent

17. Li2O = Lithium oxide (common name) or Dilithium monoxide (not correct though), covalent

18. N2O = Nitrous oxide, covalent

19. CrF3 = Chromium trifluoride, covalent

20. H2O = Water (common name) or Dihydrogen monoxide (not correct though), covalent