Topic 7 - Properties of substances

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Author:
Anonymous
ID:
73280
Filename:
Topic 7 - Properties of substances
Updated:
2011-03-16 14:23:05
Tags:
Chemistry Properties Substances
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Description:
Standard Grade Chemistry - Topic 7 - Properties of Substances
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  1. Do all metals, and carbon in the form of graphite, conduct electricity?
    Yes
  2. Do non-metals elements conduct electricity?
    No
  3. Do covalent compounds conduct electricity?
    No
  4. In ionic compounds the metal ions are ________ charged?
    postively
  5. In ionic compounds the non-metal ions are ______ charged?
    negatively
  6. When do ionic compounds conduct electricity?
    When molten or in solution
  7. Why can ionic compounds conduct electricty when molten or in solution but not solid?
    As the ions are now free to move
  8. Covalent structures have very ______ melting and boiling points?
    high
  9. Covalent compounds like diamonds or sand have very _____ bonds?
    strong

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