CHEMISTRY
MULTIPLE OXIDATION ELEMENTS
NAME _______________________
2-18-14
I CAN _____________________________________________________________________________
___________________________________________________________________________________
What is a Multiple Oxidation (MultiOx) element?
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Certain elements, particularly from the __________________________________________ and a
few ___________________________________________ tend to lose both __________________
electrons as well as one or more from the _________________________________below valence.
These are known as ____________________________________________________________ or
_______________________ for short.
Since these come from the _____________ of the periodic table, they are always ______________.
There are quite a few elements that exhibit multiple oxidation. REFER TO THE
HANDOUT PROVIDED.
Compounds with MultiOx Elements
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Its easy to recognize a MultiOx element in the __________________________________________.
– Following the name of the _______________________ there will be a ________________
_____________________________________________.
– The ___________________________ indicates the ___________________ of the element
_______________________________
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EXAMPLE Iron (III) Sulfide The roman numeral indicates the ___________ has a
________ charge in this compound.
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– This makes it easy to determine the formula for a compound containing a _______________
element.
PRATICE PROBLEMS
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Write the formula for these compounds:
Copper (II) Phosphide
( +2)
Cu
+
(-3 ) = 0
P
Iron (III) Oxide
( +3 ) +
Fe
(-2 ) = 0
O
Naming Compounds with MultiOx elements from their formulas.
• Naming a compound with a ______________element from its ____________requires
a bit of working backwards.
• 1. Look at the formula and refer to your _____________ list if needed to see if there
is a MultiOx element in the compound.
• 2. Work _______________ to determine the name of the compound.
PRACTICE PROBLEMS
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What is the name of the compound PbCl4 ?
1. Check for a MultiOx element: _________
2. Break the formula apart:
( ) + 4 ( -1) = 0
Pb
Cl
3. Use the NEGATIVE ION to determine the charge of the MultiOx ion:
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( ) + 4 ( -1) = 0
Pb
Cl
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+4
( +4 ) +
Pb
-4
4 ( -1) = 0
Cl
Therefore this is ______________ so the name of the compound is:
____________________________
ANOTHER PRACTICE PROBLEM
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What would the name of SnI4 be?
(?) +
Sn
( )
I
= 0
Therefore this is __________________ so the compound would be:
____________________
Common Multiple Oxidation State Ions
+1
Silver (II) Ag +2
Silver (I)
Ag
Copper (I)
Cu + 1
Copper (II)
Cu +2
Iron (II)
Fe +2
Iron (III)
Fe +3
Chromium (II) Cr +2
Chromium (III) Cr +3
Cobalt (II)
Co +2
Cobalt (III)
Co +3
Nickel (II)
Ni +2
Nickel (III)
Ni +3
Zinc (II)
Zn +2
Zinc (IV) Zn +4
Mercury (I)
Hg2 +2
Mercury (II) Hg +2
Lead (II)
Pb +2
Lead (IV)
Pb +4
Chemistry
Compounds with Multiple Oxidation Elements
PRACTICE PROBLEMS
Name _____________________
Write the formula for the compounds containing multiple oxidation elements.
1. Iron (III) Chloride
2. Nickel (II) Sulfide
3. Cobalt (I) Nitride
4. Iron (III) Oxide
5. Mercury (I) Bromide
6. Lead (IV) Phosphide
7. Tin (II) Oxide
8. Mercury (II) Phosphide
9. Lead (II) Chloride
Name these compounds containing multiple oxidation state elements.
10.
Cu2S
11.
FeO2
12.
Sn3P4
13.
CoF2
14.
Ag2O
15.
Hg2I2
16.
Mn2S3
17.
WCl5
18.
PbI4