Naming Type (III) Compounds

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Naming Type (III) Compounds

• Objective To learn how to name molecular
  compounds containing only Nonmetals
• Go to pg 95
• Note If youre viewing this online, make sure
  you hit slide show then
• from beginning

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Latin Numbers

• What is the name for ONE?
• Mono Examples
• Monopoly The market condition that exists when
  there is only one seller
• Monologue Any composition, as a poem, in which a
  single person speaks alone.

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Latin Numbers

• What is the Latin prefix for eight?
• Octa
• What are some examples?
• Octopus October
• Origin the eighth month of the early Roman
  year, model of September, November, December

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Which of the examples below are type (III)
compounds?

• NaCl
• F2
• CO2
• CCl4
• CuCl
• CO32-
• P2O5

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Disqualifiers

• If it only has one kind of atom. For example,
  Br2 is an element not a compound.
• If it has a negative or positive charge. For
  example NH4 is an ion.
• If it doesnt start with a nonmetal like NaCl is
  a ionic compound

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Rules for Naming Type III Binary Compounds

• The first element in the formula is named first,
  and the full elements name is used.
• 2. The second element is named as though it were
  an anion.
• 3. Prefixes are used to denote the numbers of
  atoms present.
• 4. Do not say mono if the 1st element has only
  one atom CO2

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Name BF3

• Rule 1 Name the 1st element,
• boron.
• Rule 2 Name the second element ending in -ide
• fluoride.
• Rules 3 and 4 Use prefixes to denote numbers of
  atoms. 1 boron atom dont use mono! Three
  fluorine atoms use the prefix tri-.
• The name of BF3 is boron trifluoride.

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Name the Compound NO

• The name for NO is nitrogen monoxide. Note that
  the second o in mono- has been dropped for easier
  pronunciation.
• The common name for NO, which is often used by
  chemists, is nitric oxide.

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Name the Compound NaCl

• Note that this compound starts with a metal. You
  follow the old rules of naming the positive ion
  followed by the negative ion.
• The name is sodium chloride

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Name the Compound N2O5

• Dinitrogen pentaoxide

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Name the Compound Al2O3

• Aluminum Oxide
• I hope I didnt fool ya!
• This is a metal and non-metal. Not a type(III)
  compound.

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Name the Compound H2O

• Water
• I hope I didnt fool ya!

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Name SO3 and O2-

• Sulfur trioxide
• Note that the second one has a negative charge.
• This is not a molecule. This is an ion. Its
  name is oxide.

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Name CO CO2 O2

• Carbon monoxide
• Carbon dioxide
• This is one of the seven diatomic elements the
  name is Oxygen

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Name F- F2 AlF3 SF4

• This is an ion fluoride
• This is an element fluorine
• This is type(I) aluminum fluoride
• This is a type(III) . Sulfur tetra fluoride

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Name Ca2 Co Co2

• Calcium
• Cobalt
• Cobalt(II)

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How do I know if they are type (I) , (II) or
(III)?
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QUIZ 1 5

• Name the following
• 1. PO43-
• 2. P2O5
• 3. K3P
• 4. O2
• 5. SO3

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Quiz 6

• 6. Which of the below is/are molecular compounds?
  
• (I) PCl3 (II) NO3-
• a. Both (I) and (II) b. just (I)
• c. Just (II) d. neither (I) nor (II)

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Quiz 7

• Which is not a molecular compound?
• CO2 CO O2

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