it14spr101.2dc2t4 5 6.txt

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Author:
aphy101
ID:
257294
Filename:
it14spr101.2dc2t4 5 6.txt
Updated:
2014-01-22 13:09:16
Tags:
profmwinston
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Description:
ch2 topics 4,5,6
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  1. ´╗┐This is formed when two or more atoms combine
    molecule
  2. Depicts the numbers and kinds of atoms in a molecule
    molecular formula
  3. Shows how atoms bond and are arranged in a molecule
    structural formula
  4. The region of space electrons occupy one or more of
    electron shells (energy shells)
  5. This is when the outer shell attempts to be filled to 8 electrons
    octet rule
  6. Cannot form chemical bonds
    inert
  7. Electron in the outer shell of atom that can combine with other atoms to form molecules
    valence electrons
  8. Atoms that are not reactive and have completely full outermost electron shells
    inert atoms
  9. Atoms that gain or lose electrons and become electrically charged
    ions
  10. Atoms that become positively charged because they lost electrons
    cations
  11. Atoms that become negatively charged because they gain electrons
    anions
  12. Bond formed between two opposite charged ions (between an anion and cation)
    ionic bonds
  13. Formed when atoms share electron in an attempt to fill the outer shell
    covalent bond
  14. Specialized molecule in which electrons are not shared equally
    polar
  15. Formed by the attraction of a positive hydrogen end of a polar molecule to the negative nitrogen or oxygen end of another polar molecule
    hydrogen bond
  16. Substances being changed in a chemical reaction
    reactants
  17. Substances formed at the end of a chemical reaction
    products
  18. Occurs when two or more atoms, ions, or molecules bond to form a more complex structure
    synthesis reaction
  19. Occurs when the bonds of a reactant molecule break from simpler molecules
    decomposition reaction
  20. Occurs when parts of two different kinds of molecules trade positions
    exchange reaction
  21. Occurs when products can change back to the reactant or reactants
    reversible reactions
  22. Molecules that influence the rates of chemical reactions but are not consumed in the reactions
    catalysts
  23. What happens to the charge of an atom if it either gains or loses an electron?
    The electrical charge changes
  24. Why do atoms combine with other atoms?
    To form elements

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