Chem quiz (add to..)

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Author:
LaurenCamp29
ID:
253781
Filename:
Chem quiz (add to..)
Updated:
2014-06-14 15:49:20
Tags:
Chemistry chem quiz test goldman marking period jun
Folders:
Junior Chemistry
Description:
chem
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  1. Why do elements combine?
    To become stable
  2. 2 ways elements combine
    Ionic and Covalent
  3. Why do elements want 8 valence electrons?
    To be stable
  4. Chemically bonded substance made of 2 or more atoms
    Compound
  5. Substance made of 2 or more elements physically combined
    Mixture
  6. What is the difference between a mixture and a compound?
    Mixtures can be physically separated
  7. What types of elements combine?
    Metals and Non-Metals
  8. What is the physical state at STP?
    Solid
  9. 3 characteristics of a Ionic Compound
    • Electrical Conducitvity
    • Solubility in Water
    • Melting Point
  10. Why do ionic bonds have a high melting point?
    • The bonds are strong
    • (the stronger the bond, the harder to break)
  11. Why would an ionic bond conduct an electrical current in a solution?
    You're separating ions in the solution
  12. What are oxidation numbers?
    A charge

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