Chem Exam 3 Review

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epena
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76768
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Chem Exam 3 Review
Updated:
2011-04-02 17:06:48
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Chemistry DIFS
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Chem Exam 3 Review
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  1. How do most metals and non-metals unite chemically?
    Ionic Bonds
  2. How is the arrow in a chemical equation read?
    Yields or Produces
  3. How many classes of inorganic compounds are there?
    Four
  4. Make sure you can tell the difference between a balanced and unbalanced equation
    Hint: check elements are the same amount on each side of the equation. Start with Hydrogen or Oxygens.
  5. What are the four classes of inorganic compounds?
    • 1. Acids
    • 2. Bases
    • 3. Salts
    • 4. Oxides
  6. What are other names for a double displacement reaction?
    • 1. Metathesis
    • 2. Neutralization reaction
    • 3. Double Replacement
  7. What are other names for the oxidation number?
    Valence of an atom
  8. What does the arrow do in a chemical equation?
    Used instead of an equal sign to indicate the direction of the reaction
  9. What does the arrow express in a chemical equation?
    The law of conservation of mass
  10. What is the following called?
    Fe + CuSO4 ---> FeSO4 + Cu
    Chemical Equation
  11. What type of chemical reaction includes all the classes of inorganic compounds?
    Neutralization Reaction
  12. What was the example given for rapid oxidation?
    Burning Wood
  13. What was the example given for slow oxidation?
    Rusting of Metal
  14. What was the example given for spontaneous combustion?
    Sudden explosion of grain silos
  15. When four electrons are shared, it forms what?
    Double covalent bond
  16. When one pair of electrons is shared, it forms what?
    (Single) Covaltent Bond
  17. When six electrons are shared, it forms what?
    Triple Covalent Bond
  18. When three pairs of electrons are shared, it forms what?
    Triple Covalent Bond
  19. When two electrons are shared, it forms what?
    (Single) Covalent Bond
  20. When two pair of electrons are shared, it forms what?
    Double Covalent Bond
  21. Where does the oxidation number come from?
    The number of electrons lost, gained or shared when an atom of an element combines
  22. A. What happens when the cation of a base & anion of an acid combines?

    B. What happens to the leftovers from that reaction
    A. Forms a salt

    B. Forms an oxide
  23. Are the following equations balanced?

    Cl2 + NaBr --> NaCl + Br2
    C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O
    • Cl2 + NaBr --> NaCl + Br2: No
    • C6H12O6+ 6 O2 --> 6 CO2 + 6 H2O : Yes
  24. List all of the names of the following compounds…

    NaHCO3
    • 1. Sodium hydrogen carbonate
    • 2. Sodium bicarbonate
    • 3. Baking soda
  25. List all the names of the following Compounds...

    Na2CO3
    • 1. Sodium Carbonate
    • 2.Washing Soda
  26. List all the names of the following Compounds...

    Na2B4O7
    • 1. Sodium tetraborate
    • 2. Borax
  27. List all the names of the following Compounds...

    NaCl
    • 1. Sodium Chloride
    • 2. Table Salt
  28. List all the names of the following Compounds...

    NaOH
    • 1. Sodium hydroxide
    • 2. Caustic soda
    • 3. Lye
  29. List all the names of the following Compounds...

    H2O
    • 1. Dihydrogen monoxide
    • 2. Water

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