Chem final

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Haileeeey
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255273
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Chem final
Updated:
2014-01-05 23:25:58
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Science
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Study for chemistry 9 final
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  1. Flammable and combustable material
  2. Corrosive material
  3. Compressed gas
  4. Biohazardous and infectious material
  5. List 4 principles of the atomic theory
    • atoms are attracted to each other.
    • atoms are not created or destroyed by ordinary means.
    • atoms are bonded
    • atoms my form together to form molecules
  6. Is colour a physical or chemical property?
    Physical
  7. Is solubility a physical or chemical property?
    Physical
  8. Is combustibility a physical or chemical property?
    Chemical
  9. What are indications that a chemical reaction has occurred?
    • New substance is created
    • new colour
    • cannot be reversed
  10. Is texture a quantative or qualitative property?
    Qualatative
  11. Is electric conductivity a quantative or qualitative property?
    Quantative
  12. Is ductile a metal or non-metal characteristic?
    Metal
  13. Is being an insulator a metal or non-metal characteristic
    Non- metal
  14. what is a noble gas?
    an unreactive non-metal
  15. What are alkali metals?
    Most reactive metals
  16. What are alkaline earth metals?
    Lightly reactive metals
  17. What are halogens?
    Most reactive non-metals
  18. What is atomic mass?
    Measures the amount of protons and electrons in an atom
  19. What is an atomic number?
    The total weight of an atom
  20. who founded the periodic table?
    Dmitri Ivanovich Mendeleev
  21. Where on the periodic table do you find the most reactive metals?
    They are found farthest to the left
  22. What were the elements that the Greeks believed made up the "periodic table"?
    • Water
    • air
    • earth
    • fire
  23. Define an ionic compound?
    Compound made up of one metal and one non-metal.
  24. Define a molecular Compound?
    Compound made up of 2 non-metals.
  25. What is a polyatomic?
    Group of atoms acting as one
  26. What is the common name for NaCl ?
    Table salt
  27. What is the common name for NH3 ?
    Ammonia

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