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Molecular Compounds

Molecular Compounds. Brittany MacCallum Victoria Banfield Natasha Whalen. Molecular Compounds. Aluminium bromide Al2Br6 Aluminium chloride Al2Cl6 Ammonia NH3 Decaborane B10H10 Dodecaborane B12H12 Beryllium hydride. What are Molecular Compounds?.

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Molecular Compounds

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  1. Molecular Compounds Brittany MacCallum Victoria Banfield Natasha Whalen

  2. Molecular Compounds • Aluminium bromide • Al2Br6 • Aluminium chloride • Al2Cl6 • Ammonia • NH3 • Decaborane • B10H10 • Dodecaborane • B12H12 • Beryllium hydride

  3. What are Molecular Compounds? • Substances made up of molecules with a molecular weight smaller than 104 Daltons. • Have a well defined structure. • Examples are ethanol (ethyl alcohol), glucose

  4. Expression of the Composition or Structure of a ChemicalCompound • Formulas for molecules use chemical symbols with subscript numbers to show the number of atoms of each element • Ex: O2 for molecular oxygen

  5. What is a Molecule? • A unit of matter that is the smallest particle of an element. • Chemical combination of atoms (as a compound) capable of retaining chemical identity with the substance in mass.

  6. Explanation • Covalent bonds holds atoms of the same or different non-metal elements together by sharing pairs of electrons. Atoms joined by covalent bonds form molecules. Depending on the number of shared pairs of electrons between two atoms, the covalent bond can be described as a single or a multiple covalent bond. • A single covalent bond is when 2 electrons are shared between atoms. A double bond is when 4 electrons are shared and Triple is when 6 electrons are shared.

  7. Rules to Name Molecular Compounds 1. The first element in the formula is named first, using the full element name. 2.The second element is named using the suffix -ide. 3. Prefixes are used to see the numbers of atoms present.

  8. Prefix and number of atoms • Mono- 1 • Di- 2 • Tri-3 • Tetra-4 • Penta- 5 • Hexa-6 • Hepta-7 • Octa- 8 • Hoha- 9 • Deca- 10

  9. Examples Compound • NO Nitrogen monoxide • N2O Nitrogen monoxide • NO2 Nitrogen monoxide • N2O3 Dinitrogen trioxide • N2O4 Dinitrogen tetraoxide

  10. QUIZ

  11. Find the Formula for the Following Compounds…

  12. Bromine pentafluoride

  13. BF5

  14. Carbon Dioxide

  15. CO2

  16. Iodine monochloride

  17. ICl

  18. Nitrogen dioxide

  19. NO2

  20. Phosphorus trichloride

  21. PCl3

  22. Find the Name of the Compound for the Following Formulas…

  23. SiCl4

  24. Silicon tetrachloride

  25. SO2Cl2

  26. Sulfuryl Chloride

  27. B(CH3)3

  28. Trimethylborane

  29. N2O4

  30. Dinitrogen tetraoxide

  31. S2F10

  32. Disulfur decafluoride

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